97289947 has 4 divisors (see below), whose sum is σ = 98622760. Its totient is φ = 95957136.

The previous prime is 97289939. The next prime is 97289957. The reversal of 97289947 is 74998279.

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 97289947 - 2³ = 97289939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97289957) 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, 666297 + ... + 666442.

It is an arithmetic number, because the mean of its divisors is an integer number (24655690).

Almost surely, 2^97289947 is an apocalyptic number.

97289947 is a deficient number, since it is larger than the sum of its proper divisors (1332813).

97289947 is a wasteful number, since it uses less digits than its factorization.

97289947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332812.

The product of its digits is 2286144, while the sum is 55.

The square root of 97289947 is about 9863.5666470096. The cubic root of 97289947 is about 459.9274412965.

The spelling of 97289947 in words is "ninety-seven million, two hundred eighty-nine thousand, nine hundred forty-seven".