97649013 has 32 divisors (see below), whose sum is σ = 165657600. Its totient is φ = 50720880.

The previous prime is 97648981. The next prime is 97649017. The reversal of 97649013 is 31094679.

It is not a de Polignac number, because 97649013 - 2⁵ = 97648981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97649017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7006 + ... + 15632.

It is an arithmetic number, because the mean of its divisors is an integer number (5176800).

Almost surely, 2^97649013 is an apocalyptic number.

It is an amenable number.

97649013 is a deficient number, since it is larger than the sum of its proper divisors (68008587).

97649013 is a wasteful number, since it uses less digits than its factorization.

97649013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8662 (or 8648 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 97649013 is about 9881.7515147872. The cubic root of 97649013 is about 460.4925615457.

It can be divided in two parts, 976490 and 13, that added together give a triangular number (976503 = T₁₃₉₇).

The spelling of 97649013 in words is "ninety-seven million, six hundred forty-nine thousand, thirteen".