97902193 has 4 divisors (see below), whose sum is σ = 103054960. Its totient is φ = 92749428.

The previous prime is 97902179. The next prime is 97902199. The reversal of 97902193 is 39120979.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39120979 = 1129 ⋅34651.

It is a cyclic number.

It is not a de Polignac number, because 97902193 - 2⁹ = 97901681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97902199) 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, 2576355 + ... + 2576392.

It is an arithmetic number, because the mean of its divisors is an integer number (25763740).

Almost surely, 2^97902193 is an apocalyptic number.

It is an amenable number.

97902193 is a deficient number, since it is larger than the sum of its proper divisors (5152767).

97902193 is a wasteful number, since it uses less digits than its factorization.

97902193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5152766.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 97902193 is about 9894.5537039323. The cubic root of 97902193 is about 460.8901996002.

The spelling of 97902193 in words is "ninety-seven million, nine hundred two thousand, one hundred ninety-three".