75407697 has 6 divisors (see below), whose sum is σ = 108922242. Its totient is φ = 50271792.

The previous prime is 75407687. The next prime is 75407701. The reversal of 75407697 is 79670457.

It can be written as a sum of positive squares in only one way, i.e., 44036496 + 31371201 = 6636^2 + 5601^2 .

It is not a de Polignac number, because 75407697 - 2⁸ = 75407441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75407687) 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 5 ways as a sum of consecutive naturals, for example, 4189308 + ... + 4189325.

It is an arithmetic number, because the mean of its divisors is an integer number (18153707).

Almost surely, 2^75407697 is an apocalyptic number.

It is an amenable number.

75407697 is a deficient number, since it is larger than the sum of its proper divisors (33514545).

75407697 is a wasteful number, since it uses less digits than its factorization.

75407697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8378639 (or 8378636 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 75407697 is about 8683.7605333173. The cubic root of 75407697 is about 422.4790965698.

The spelling of 75407697 in words is "seventy-five million, four hundred seven thousand, six hundred ninety-seven".