73740081 has 8 divisors (see below), whose sum is σ = 98397504. Its totient is φ = 49121360.

The previous prime is 73740077. The next prime is 73740091. The reversal of 73740081 is 18004737.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73740081 - 2² = 73740077 is a prime.

It is a super-2 number, since 2×73740081² = 10875199091773122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73740091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4890 + ... + 13091.

It is an arithmetic number, because the mean of its divisors is an integer number (12299688).

Almost surely, 2^73740081 is an apocalyptic number.

It is an amenable number.

73740081 is a deficient number, since it is larger than the sum of its proper divisors (24657423).

73740081 is a wasteful number, since it uses less digits than its factorization.

73740081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19351.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 73740081 is about 8587.2044927322. The cubic root of 73740081 is about 419.3415248729.

The spelling of 73740081 in words is "seventy-three million, seven hundred forty thousand, eighty-one".