9402397715 has 4 divisors (see below), whose sum is σ = 11282877264. Its totient is φ = 7521918168.

The previous prime is 9402397691. The next prime is 9402397717. The reversal of 9402397715 is 5177932049.

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 9402397715 - 2⁶ = 9402397651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9402397715.

It is not an unprimeable number, because it can be changed into a prime (9402397717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940239767 + ... + 940239776.

It is an arithmetic number, because the mean of its divisors is an integer number (2820719316).

Almost surely, 2^9402397715 is an apocalyptic number.

9402397715 is a deficient number, since it is larger than the sum of its proper divisors (1880479549).

9402397715 is a wasteful number, since it uses less digits than its factorization.

9402397715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880479548.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 9402397715 is about 96965.9616308733. The cubic root of 9402397715 is about 2110.6337213600.

The spelling of 9402397715 in words is "nine billion, four hundred two million, three hundred ninety-seven thousand, seven hundred fifteen".