97249651 has 4 divisors (see below), whose sum is σ = 98581912. Its totient is φ = 95917392.

The previous prime is 97249637. The next prime is 97249661. The reversal of 97249651 is 15694279.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97249651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97249598 and 97249607.

It is not an unprimeable number, because it can be changed into a prime (97249601) 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, 666021 + ... + 666166.

It is an arithmetic number, because the mean of its divisors is an integer number (24645478).

Almost surely, 2^97249651 is an apocalyptic number.

97249651 is a deficient number, since it is larger than the sum of its proper divisors (1332261).

97249651 is a wasteful number, since it uses less digits than its factorization.

97249651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332260.

The product of its digits is 136080, while the sum is 43.

The square root of 97249651 is about 9861.5237666397. The cubic root of 97249651 is about 459.8639342365.

The spelling of 97249651 in words is "ninety-seven million, two hundred forty-nine thousand, six hundred fifty-one".