97269991 has 8 divisors (see below), whose sum is σ = 119717024. Its totient is φ = 76960800.

The previous prime is 97269961. The next prime is 97270001. The reversal of 97269991 is 19996279.

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

It is not a de Polignac number, because 97269991 - 2⁵ = 97269959 is a prime.

It is a super-2 number, since 2×97269991² = 18922902298280162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97269901) 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, 534360 + ... + 534541.

It is an arithmetic number, because the mean of its divisors is an integer number (14964628).

Almost surely, 2^97269991 is an apocalyptic number.

97269991 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

97269991 is a deficient number, since it is larger than the sum of its proper divisors (22447033).

97269991 is a wasteful number, since it uses less digits than its factorization.

97269991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068921.

The product of its digits is 551124, while the sum is 52.

The square root of 97269991 is about 9862.5549935095. The cubic root of 97269991 is about 459.8959925534.

The spelling of 97269991 in words is "ninety-seven million, two hundred sixty-nine thousand, nine hundred ninety-one".