74474959 has 16 divisors (see below), whose sum is σ = 82001920. Its totient is φ = 67223520.

The previous prime is 74474947. The next prime is 74474971. The reversal of 74474959 is 95947447.

74474959 = 410² + 411² + ... + 663².

It is an interprime number because it is at equal distance from previous prime (74474947) and next prime (74474971).

It is not a de Polignac number, because 74474959 - 2¹¹ = 74472911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74471959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130144 + ... + 130714.

It is an arithmetic number, because the mean of its divisors is an integer number (5125120).

Almost surely, 2^74474959 is an apocalyptic number.

74474959 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

74474959 is a deficient number, since it is larger than the sum of its proper divisors (7526961).

74474959 is a wasteful number, since it uses less digits than its factorization.

74474959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790.

The product of its digits is 1270080, while the sum is 49.

The square root of 74474959 is about 8629.8875427204. The cubic root of 74474959 is about 420.7299456859.

Subtracting from 74474959 its sum of digits (49), we obtain a triangular number (74474910 = T₁₂₂₀₄).

The spelling of 74474959 in words is "seventy-four million, four hundred seventy-four thousand, nine hundred fifty-nine".