97813851 has 8 divisors (see below), whose sum is σ = 130497024. Its totient is φ = 65169960.

The previous prime is 97813841. The next prime is 97813853. The reversal of 97813851 is 15831879.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97813851 - 2⁵ = 97813819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97813853) 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, 3411 + ... + 14396.

It is an arithmetic number, because the mean of its divisors is an integer number (16312128).

Almost surely, 2^97813851 is an apocalyptic number.

97813851 is a deficient number, since it is larger than the sum of its proper divisors (32683173).

97813851 is a wasteful number, since it uses less digits than its factorization.

97813851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19641.

The product of its digits is 60480, while the sum is 42.

The square root of 97813851 is about 9890.0885233652. The cubic root of 97813851 is about 460.7515298606.

The spelling of 97813851 in words is "ninety-seven million, eight hundred thirteen thousand, eight hundred fifty-one".