97288279 has 4 divisors (see below), whose sum is σ = 106132680. Its totient is φ = 88443880.

The previous prime is 97288273. The next prime is 97288283.

97288279 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97288279 - 2⁹ = 97287767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97288273) 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, 4422184 + ... + 4422205.

It is an arithmetic number, because the mean of its divisors is an integer number (26533170).

Almost surely, 2^97288279 is an apocalyptic number.

97288279 is a deficient number, since it is larger than the sum of its proper divisors (8844401).

97288279 is a wasteful number, since it uses less digits than its factorization.

97288279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8844400.

The product of its digits is 1016064, while the sum is 52.

The square root of 97288279 is about 9863.4820930542. The cubic root of 97288279 is about 459.9248128531.

The spelling of 97288279 in words is "ninety-seven million, two hundred eighty-eight thousand, two hundred seventy-nine".