74699556 has 24 divisors (see below), whose sum is σ = 176507520. Its totient is φ = 24584352.

The previous prime is 74699551. The next prime is 74699579. The reversal of 74699556 is 65599647.

It is a junction number, because it is equal to n+sod(n) for n = 74699499 and 74699508.

It is not an unprimeable number, because it can be changed into a prime (74699551) 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, 38451 + ... + 40346.

It is an arithmetic number, because the mean of its divisors is an integer number (7354480).

Almost surely, 2^74699556 is an apocalyptic number.

It is an amenable number.

74699556 is an abundant number, since it is smaller than the sum of its proper divisors (101807964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74699556 is a wasteful number, since it uses less digits than its factorization.

74699556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78883 (or 78881 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 51.

The square root of 74699556 is about 8642.8904887196. The cubic root of 74699556 is about 421.1524584038.

Subtracting from 74699556 its reverse (65599647), we obtain a palindrome (9099909).

The spelling of 74699556 in words is "seventy-four million, six hundred ninety-nine thousand, five hundred fifty-six".