971438652 has 36 divisors (see below), whose sum is σ = 2456914096. Its totient is φ = 323637120.

The previous prime is 971438647. The next prime is 971438687. The reversal of 971438652 is 256834179.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 971438598 and 971438607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71553 + ... + 84039.

Almost surely, 2^971438652 is an apocalyptic number.

It is an amenable number.

971438652 is an abundant number, since it is smaller than the sum of its proper divisors (1485475444).

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

971438652 is a wasteful number, since it uses less digits than its factorization.

971438652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14658 (or 14653 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 971438652 is about 31167.9106133215. The cubic root of 971438652 is about 990.3874455338.

The spelling of 971438652 in words is "nine hundred seventy-one million, four hundred thirty-eight thousand, six hundred fifty-two".