97802497 has 12 divisors (see below), whose sum is σ = 106251264. Its totient is φ = 89983920.

The previous prime is 97802473. The next prime is 97802501. The reversal of 97802497 is 79420879.

It is a de Polignac number, because none of the positive numbers 2^k-97802497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97802447) 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 11 ways as a sum of consecutive naturals, for example, 63972 + ... + 65482.

It is an arithmetic number, because the mean of its divisors is an integer number (8854272).

Almost surely, 2^97802497 is an apocalyptic number.

It is an amenable number.

97802497 is a deficient number, since it is larger than the sum of its proper divisors (8448767).

97802497 is a wasteful number, since it uses less digits than its factorization.

97802497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920 (or 1907 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 97802497 is about 9889.5144976890. The cubic root of 97802497 is about 460.7337015222.

It can be divided in two parts, 978024 and 97, that added together give a square (978121 = 989²).

The spelling of 97802497 in words is "ninety-seven million, eight hundred two thousand, four hundred ninety-seven".