97247491 has 8 divisors (see below), whose sum is σ = 111672000. Its totient is φ = 83753640.

The previous prime is 97247483. The next prime is 97247509. The reversal of 97247491 is 19474279.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97247491 - 2³ = 97247483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97247431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232441 + ... + 232858.

It is an arithmetic number, because the mean of its divisors is an integer number (13959000).

Almost surely, 2^97247491 is an apocalyptic number.

97247491 is a deficient number, since it is larger than the sum of its proper divisors (14424509).

97247491 is a wasteful number, since it uses less digits than its factorization.

97247491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465329.

The product of its digits is 127008, while the sum is 43.

The square root of 97247491 is about 9861.4142494877. The cubic root of 97247491 is about 459.8605295510.

The spelling of 97247491 in words is "ninety-seven million, two hundred forty-seven thousand, four hundred ninety-one".