73040801 has 4 divisors (see below), whose sum is σ = 76216512. Its totient is φ = 69865092.

The previous prime is 73040797. The next prime is 73040809. The reversal of 73040801 is 10804037.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73040801 - 2² = 73040797 is a prime.

It is a super-2 number, since 2×73040801² = 10669917221443202, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 3175687 = 73040801 / (7 + 3 + 0 + 4 + 0 + 8 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73040809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1587821 + ... + 1587866.

It is an arithmetic number, because the mean of its divisors is an integer number (19054128).

Almost surely, 2^73040801 is an apocalyptic number.

It is an amenable number.

73040801 is a deficient number, since it is larger than the sum of its proper divisors (3175711).

73040801 is a wasteful number, since it uses less digits than its factorization.

73040801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3175710.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 73040801 is about 8546.3911097024. The cubic root of 73040801 is about 418.0117687063.

Adding to 73040801 its reverse (10804037), we get a palindrome (83844838).

The spelling of 73040801 in words is "seventy-three million, forty thousand, eight hundred one".