97730385 has 16 divisors (see below), whose sum is σ = 156691584. Its totient is φ = 52015232.

The previous prime is 97730351. The next prime is 97730387. The reversal of 97730385 is 58303779.

It is a cyclic number.

It is not a de Polignac number, because 97730385 - 2⁷ = 97730257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97730387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1069 + ... + 14021.

It is an arithmetic number, because the mean of its divisors is an integer number (9793224).

Almost surely, 2^97730385 is an apocalyptic number.

It is an amenable number.

97730385 is a deficient number, since it is larger than the sum of its proper divisors (58961199).

97730385 is a wasteful number, since it uses less digits than its factorization.

97730385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13464.

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 97730385 is about 9885.8679436861. The cubic root of 97730385 is about 460.6204372098.

The spelling of 97730385 in words is "ninety-seven million, seven hundred thirty thousand, three hundred eighty-five".