97974247 has 16 divisors (see below), whose sum is σ = 119308032. Its totient is φ = 78537600.

The previous prime is 97974223. The next prime is 97974259. The reversal of 97974247 is 74247979.

It is a cyclic number.

It is not a de Polignac number, because 97974247 - 2⁷ = 97974119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97974247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97974287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16872 + ... + 21922.

It is an arithmetic number, because the mean of its divisors is an integer number (7456752).

Almost surely, 2^97974247 is an apocalyptic number.

97974247 is a deficient number, since it is larger than the sum of its proper divisors (21333785).

97974247 is a wasteful number, since it uses less digits than its factorization.

97974247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5238.

The product of its digits is 889056, while the sum is 49.

The square root of 97974247 is about 9898.1941282236. The cubic root of 97974247 is about 461.0032404413.

The spelling of 97974247 in words is "ninety-seven million, nine hundred seventy-four thousand, two hundred forty-seven".