9897245402 has 32 divisors (see below), whose sum is σ = 17159869440. Its totient is φ = 4231226880.

The previous prime is 9897245381. The next prime is 9897245417. The reversal of 9897245402 is 2045427989.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593543 + ... + 609989.

It is an arithmetic number, because the mean of its divisors is an integer number (536245920).

Almost surely, 2^9897245402 is an apocalyptic number.

9897245402 is a deficient number, since it is larger than the sum of its proper divisors (7262624038).

9897245402 is a wasteful number, since it uses less digits than its factorization.

9897245402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18086.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 9897245402 is about 99484.9003718655. The cubic root of 9897245402 is about 2147.0300006069.

The spelling of 9897245402 in words is "nine billion, eight hundred ninety-seven million, two hundred forty-five thousand, four hundred two".