97263913 has 4 divisors (see below), whose sum is σ = 97408260. Its totient is φ = 97119568.

The previous prime is 97263877. The next prime is 97263923. The reversal of 97263913 is 31936279.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55234624 + 42029289 = 7432^2 + 6483^2 .

It is a cyclic number.

It is not a de Polignac number, because 97263913 - 2²¹ = 95166761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97263923) 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 3 ways as a sum of consecutive naturals, for example, 71158 + ... + 72511.

It is an arithmetic number, because the mean of its divisors is an integer number (24352065).

Almost surely, 2^97263913 is an apocalyptic number.

It is an amenable number.

97263913 is a deficient number, since it is larger than the sum of its proper divisors (144347).

97263913 is a wasteful number, since it uses less digits than its factorization.

97263913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144346.

The product of its digits is 61236, while the sum is 40.

The square root of 97263913 is about 9862.2468535319. The cubic root of 97263913 is about 459.8864133535.

The spelling of 97263913 in words is "ninety-seven million, two hundred sixty-three thousand, nine hundred thirteen".