65712474 has 24 divisors (see below), whose sum is σ = 145065492. Its totient is φ = 21490560.

The previous prime is 65712473. The next prime is 65712523. The reversal of 65712474 is 47421756.

It can be written as a sum of positive squares in 2 ways, for example, as 61732449 + 3980025 = 7857^2 + 1995^2 .

It is not an unprimeable number, because it can be changed into a prime (65712473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33487 + ... + 35394.

Almost surely, 2^65712474 is an apocalyptic number.

65712474 is an abundant number, since it is smaller than the sum of its proper divisors (79353018).

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

65712474 is a wasteful number, since it uses less digits than its factorization.

65712474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68942 (or 68939 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 65712474 is about 8106.3230875657. The cubic root of 65712474 is about 403.5362985177.

It can be divided in two parts, 6571 and 2474, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 65712474 in words is "sixty-five million, seven hundred twelve thousand, four hundred seventy-four".