74856797 has 4 divisors (see below), whose sum is σ = 79260156. Its totient is φ = 70453440.

The previous prime is 74856779. The next prime is 74856869. The reversal of 74856797 is 79765847.

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 49716601 + 25140196 = 7051^2 + 5014^2 .

It is not a de Polignac number, because 74856797 - 2⁸ = 74856541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74856707) 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, 2201654 + ... + 2201687.

It is an arithmetic number, because the mean of its divisors is an integer number (19815039).

Almost surely, 2^74856797 is an apocalyptic number.

It is an amenable number.

74856797 is a deficient number, since it is larger than the sum of its proper divisors (4403359).

74856797 is a wasteful number, since it uses less digits than its factorization.

74856797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4403358.

The product of its digits is 2963520, while the sum is 53.

The square root of 74856797 is about 8651.9822584192. The cubic root of 74856797 is about 421.4477570013.

The spelling of 74856797 in words is "seventy-four million, eight hundred fifty-six thousand, seven hundred ninety-seven".