71380401 has 4 divisors (see below), whose sum is σ = 95173872. Its totient is φ = 47586932.

The previous prime is 71380373. The next prime is 71380411. The reversal of 71380401 is 10408317.

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 71380401 - 2⁵ = 71380369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71380411) 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, 11896731 + ... + 11896736.

It is an arithmetic number, because the mean of its divisors is an integer number (23793468).

Almost surely, 2^71380401 is an apocalyptic number.

It is an amenable number.

71380401 is a deficient number, since it is larger than the sum of its proper divisors (23793471).

71380401 is a wasteful number, since it uses less digits than its factorization.

71380401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23793470.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 71380401 is about 8448.6922656705. The cubic root of 71380401 is about 414.8199751424.

Adding to 71380401 its reverse (10408317), we get a palindrome (81788718).

The spelling of 71380401 in words is "seventy-one million, three hundred eighty thousand, four hundred one".