74697552 has 50 divisors (see below), whose sum is σ = 216200138. Its totient is φ = 24898752.

The previous prime is 74697551. The next prime is 74697559. The reversal of 74697552 is 25579647.

74697552 is a `hidden beast` number, since 7 + 4 + 6 + 97 + 552 = 666.

It can be written as a sum of positive squares in only one way, i.e., 66194496 + 8503056 = 8136^2 + 2916^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74697498 and 74697507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74697551) 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 9 ways as a sum of consecutive naturals, for example, 27523 + ... + 30114.

Almost surely, 2^74697552 is an apocalyptic number.

74697552 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

74697552 is an abundant number, since it is smaller than the sum of its proper divisors (141502586).

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

74697552 is a wasteful number, since it uses less digits than its factorization.

74697552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57657 (or 57642 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 74697552 is about 8642.7745545051. The cubic root of 74697552 is about 421.1486922186.

The spelling of 74697552 in words is "seventy-four million, six hundred ninety-seven thousand, five hundred fifty-two".