9715212938 has 16 divisors (see below), whose sum is σ = 15457776264. Its totient is φ = 4563648000.

The previous prime is 9715212937. The next prime is 9715212979. The reversal of 9715212938 is 8392125179.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4793208289 + 4922004649 = 69233^2 + 70157^2 .

It is a super-3 number, since 3×9715212938³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9715212892 and 9715212901.

It is not an unprimeable number, because it can be changed into a prime (9715212937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237563 + ... + 275438.

Almost surely, 2^9715212938 is an apocalyptic number.

9715212938 is a deficient number, since it is larger than the sum of its proper divisors (5742563326).

9715212938 is a wasteful number, since it uses less digits than its factorization.

9715212938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513577.

The product of its digits is 272160, while the sum is 47.

The square root of 9715212938 is about 98565.7797513924. The cubic root of 9715212938 is about 2133.7855739534.

The spelling of 9715212938 in words is "nine billion, seven hundred fifteen million, two hundred twelve thousand, nine hundred thirty-eight".