97649253 has 64 divisors (see below), whose sum is σ = 163770880. Its totient is φ = 57106944.

The previous prime is 97649239. The next prime is 97649261. The reversal of 97649253 is 35294679.

It is a happy number.

It is not a de Polignac number, because 97649253 - 2¹² = 97645157 is a prime.

It is a super-2 number, since 2×97649253² = 19070753222916018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97649199 and 97649208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97649203) 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 63 ways as a sum of consecutive naturals, for example, 948000 + ... + 948102.

It is an arithmetic number, because the mean of its divisors is an integer number (2558920).

Almost surely, 2^97649253 is an apocalyptic number.

It is an amenable number.

97649253 is a deficient number, since it is larger than the sum of its proper divisors (66121627).

97649253 is a wasteful number, since it uses less digits than its factorization.

97649253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 229 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 97649253 is about 9881.7636583760. The cubic root of 97649253 is about 460.4929388088.

The spelling of 97649253 in words is "ninety-seven million, six hundred forty-nine thousand, two hundred fifty-three".