97242891 has 8 divisors (see below), whose sum is σ = 130100880. Its totient is φ = 64606752.

The previous prime is 97242881. The next prime is 97242947. The reversal of 97242891 is 19824279.

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

It is not a de Polignac number, because 97242891 - 2⁷ = 97242763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97242811) 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, 54436 + ... + 56193.

It is an arithmetic number, because the mean of its divisors is an integer number (16262610).

Almost surely, 2^97242891 is an apocalyptic number.

97242891 is a deficient number, since it is larger than the sum of its proper divisors (32857989).

97242891 is a wasteful number, since it uses less digits than its factorization.

97242891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110925.

The product of its digits is 72576, while the sum is 42.

The square root of 97242891 is about 9861.1810144627. The cubic root of 97242891 is about 459.8532786637.

The spelling of 97242891 in words is "ninety-seven million, two hundred forty-two thousand, eight hundred ninety-one".