7898712331 has 4 divisors (see below), whose sum is σ = 7898897664. Its totient is φ = 7898527000.

The previous prime is 7898712277. The next prime is 7898712413. The reversal of 7898712331 is 1332178987.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7898712331 - 2²⁷ = 7764494603 is a prime.

It is a super-2 number, since 2×7898712331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7898712131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6981 + ... + 125881.

It is an arithmetic number, because the mean of its divisors is an integer number (1974724416).

Almost surely, 2^7898712331 is an apocalyptic number.

7898712331 is a deficient number, since it is larger than the sum of its proper divisors (185333).

7898712331 is a wasteful number, since it uses less digits than its factorization.

7898712331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185332.

The product of its digits is 508032, while the sum is 49.

The square root of 7898712331 is about 88874.7001738965. The cubic root of 7898712331 is about 1991.5234860261.

The spelling of 7898712331 in words is "seven billion, eight hundred ninety-eight million, seven hundred twelve thousand, three hundred thirty-one".