97788893 has 4 divisors (see below), whose sum is σ = 102040608. Its totient is φ = 93537180.

The previous prime is 97788871. The next prime is 97788931. The reversal of 97788893 is 39888779.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97788893 - 2⁸ = 97788637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97788853) 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, 2125823 + ... + 2125868.

It is an arithmetic number, because the mean of its divisors is an integer number (25510152).

Almost surely, 2^97788893 is an apocalyptic number.

It is an amenable number.

97788893 is a deficient number, since it is larger than the sum of its proper divisors (4251715).

97788893 is a wasteful number, since it uses less digits than its factorization.

97788893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4251714.

The product of its digits is 6096384, while the sum is 59.

The square root of 97788893 is about 9888.8266745858. The cubic root of 97788893 is about 460.7123383597.

The spelling of 97788893 in words is "ninety-seven million, seven hundred eighty-eight thousand, eight hundred ninety-three".