74553399 has 16 divisors (see below), whose sum is σ = 110880000. Its totient is φ = 49508568.

The previous prime is 74553389. The next prime is 74553433. The reversal of 74553399 is 99335547.

74553399 = 82² + 83² + ... + 607².

74553399 is a `hidden beast` number, since 7 + 4 + 553 + 3 + 99 = 666.

It is not a de Polignac number, because 74553399 - 2¹² = 74549303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74553319) 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 15 ways as a sum of consecutive naturals, for example, 1852 + ... + 12350.

It is an arithmetic number, because the mean of its divisors is an integer number (6930000).

Almost surely, 2^74553399 is an apocalyptic number.

74553399 is a deficient number, since it is larger than the sum of its proper divisors (36326601).

74553399 is a wasteful number, since it uses less digits than its factorization.

74553399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10771 (or 10765 counting only the distinct ones).

The product of its digits is 510300, while the sum is 45.

The square root of 74553399 is about 8634.4310177336. The cubic root of 74553399 is about 420.8776037166.

The spelling of 74553399 in words is "seventy-four million, five hundred fifty-three thousand, three hundred ninety-nine".