9913699431 has 32 divisors (see below), whose sum is σ = 14902050240. Its totient is φ = 6594125760.

The previous prime is 9913699429. The next prime is 9913699441. The reversal of 9913699431 is 1349963199.

9913699431 is a `hidden beast` number, since 9 + 91 + 36 + 99 + 431 = 666.

It is not a de Polignac number, because 9913699431 - 2¹ = 9913699429 is a prime.

It is a super-2 number, since 2×9913699431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9913699441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1003291 + ... + 1013123.

It is an arithmetic number, because the mean of its divisors is an integer number (465689070).

Almost surely, 2^9913699431 is an apocalyptic number.

9913699431 is a deficient number, since it is larger than the sum of its proper divisors (4988350809).

9913699431 is an frugal number, since it uses more digits than its factorization.

9913699431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10315 (or 10297 counting only the distinct ones).

The product of its digits is 1417176, while the sum is 54.

The square root of 9913699431 is about 99567.5621424970. The cubic root of 9913699431 is about 2148.2191441002.

The spelling of 9913699431 in words is "nine billion, nine hundred thirteen million, six hundred ninety-nine thousand, four hundred thirty-one".