75613297 has 4 divisors (see below), whose sum is σ = 80061156. Its totient is φ = 71165440.

The previous prime is 75613277. The next prime is 75613301. The reversal of 75613297 is 79231657.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68409441 + 7203856 = 8271^2 + 2684^2 .

It is a cyclic number.

It is not a de Polignac number, because 75613297 - 2⁷ = 75613169 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75613267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2223904 + ... + 2223937.

It is an arithmetic number, because the mean of its divisors is an integer number (20015289).

Almost surely, 2^75613297 is an apocalyptic number.

It is an amenable number.

75613297 is a deficient number, since it is larger than the sum of its proper divisors (4447859).

75613297 is a wasteful number, since it uses less digits than its factorization.

75613297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4447858.

The product of its digits is 79380, while the sum is 40.

The square root of 75613297 is about 8695.5906642390. The cubic root of 75613297 is about 422.8627129286.

The spelling of 75613297 in words is "seventy-five million, six hundred thirteen thousand, two hundred ninety-seven".