71653952 has 28 divisors (see below), whose sum is σ = 142949676. Its totient is φ = 35635200.

The previous prime is 71653949. The next prime is 71653961. The reversal of 71653952 is 25935617.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 49224256 + 22429696 = 7016^2 + 4736^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9452 + ... + 15252.

Almost surely, 2^71653952 is an apocalyptic number.

It is an amenable number.

71653952 is a deficient number, since it is larger than the sum of its proper divisors (71295724).

71653952 is a wasteful number, since it uses less digits than its factorization.

71653952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6006 (or 5996 counting only the distinct ones).

The product of its digits is 56700, while the sum is 38.

The square root of 71653952 is about 8464.8657402229. The cubic root of 71653952 is about 415.3492043114.

It can be divided in two parts, 716539 and 52, that multiplied together give a triangular number (37260028 = T₈₆₃₂).

The spelling of 71653952 in words is "seventy-one million, six hundred fifty-three thousand, nine hundred fifty-two".