71379952 has 20 divisors (see below), whose sum is σ = 158055856. Its totient is φ = 30591360.

The previous prime is 71379937. The next prime is 71379961. The reversal of 71379952 is 25997317.

It is a junction number, because it is equal to n+sod(n) for n = 71379899 and 71379908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318549 + ... + 318772.

Almost surely, 2^71379952 is an apocalyptic number.

It is an amenable number.

71379952 is an abundant number, since it is smaller than the sum of its proper divisors (86675904).

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

71379952 is a wasteful number, since it uses less digits than its factorization.

71379952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637336 (or 637330 counting only the distinct ones).

The product of its digits is 119070, while the sum is 43.

The square root of 71379952 is about 8448.6656934690. The cubic root of 71379952 is about 414.8191053679.

It can be divided in two parts, 7 and 1379952, that multiplied together give a square (9659664 = 3108²).

The spelling of 71379952 in words is "seventy-one million, three hundred seventy-nine thousand, nine hundred fifty-two".