97277961 has 32 divisors (see below), whose sum is σ = 152409600. Its totient is φ = 54529280.

The previous prime is 97277959. The next prime is 97278007. The reversal of 97277961 is 16977279.

It is a cyclic number.

It is not a de Polignac number, because 97277961 - 2¹ = 97277959 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 97277961.

It is not an unprimeable number, because it can be changed into a prime (97277941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31630 + ... + 34568.

It is an arithmetic number, because the mean of its divisors is an integer number (4762800).

Almost surely, 2^97277961 is an apocalyptic number.

It is an amenable number.

97277961 is a deficient number, since it is larger than the sum of its proper divisors (55131639).

97277961 is a wasteful number, since it uses less digits than its factorization.

97277961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029.

The product of its digits is 333396, while the sum is 48.

The square root of 97277961 is about 9862.9590387469. The cubic root of 97277961 is about 459.9085530253.

The spelling of 97277961 in words is "ninety-seven million, two hundred seventy-seven thousand, nine hundred sixty-one".