97077231 has 32 divisors (see below), whose sum is σ = 147962880. Its totient is φ = 62875008.

The previous prime is 97077221. The next prime is 97077247. The reversal of 97077231 is 13277079.

It is not a de Polignac number, because 97077231 - 2⁵ = 97077199 is a prime.

It is a super-2 number, since 2×97077231² = 18847977557254722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97077221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287895 + ... + 288231.

It is an arithmetic number, because the mean of its divisors is an integer number (4623840).

Almost surely, 2^97077231 is an apocalyptic number.

97077231 is a deficient number, since it is larger than the sum of its proper divisors (50885649).

97077231 is a wasteful number, since it uses less digits than its factorization.

97077231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 614 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 97077231 is about 9852.7778316574. Note that the first 3 decimals coincide. The cubic root of 97077231 is about 459.5919996017.

The spelling of 97077231 in words is "ninety-seven million, seventy-seven thousand, two hundred thirty-one".