97121707 has 4 divisors (see below), whose sum is σ = 99746656. Its totient is φ = 94496760.

The previous prime is 97121671. The next prime is 97121737. The reversal of 97121707 is 70712179.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70712179 = 29 ⋅2438351.

It is a cyclic number.

It is not a de Polignac number, because 97121707 - 2¹⁵ = 97088939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97121737) 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 3 ways as a sum of consecutive naturals, for example, 1312419 + ... + 1312492.

It is an arithmetic number, because the mean of its divisors is an integer number (24936664).

Almost surely, 2^97121707 is an apocalyptic number.

97121707 is a deficient number, since it is larger than the sum of its proper divisors (2624949).

97121707 is a wasteful number, since it uses less digits than its factorization.

97121707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624948.

The product of its (nonzero) digits is 6174, while the sum is 34.

The square root of 97121707 is about 9855.0346016643. The cubic root of 97121707 is about 459.6621763489.

The spelling of 97121707 in words is "ninety-seven million, one hundred twenty-one thousand, seven hundred seven".