97902403 has 4 divisors (see below), whose sum is σ = 99002520. Its totient is φ = 96802288.

The previous prime is 97902379. The next prime is 97902419. The reversal of 97902403 is 30420979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30420979 = 1109 ⋅27431.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97902403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97002403) 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, 549925 + ... + 550102.

It is an arithmetic number, because the mean of its divisors is an integer number (24750630).

Almost surely, 2^97902403 is an apocalyptic number.

97902403 is a deficient number, since it is larger than the sum of its proper divisors (1100117).

97902403 is a wasteful number, since it uses less digits than its factorization.

97902403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100116.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 97902403 is about 9894.5643158251. The cubic root of 97902403 is about 460.8905291361.

It can be divided in two parts, 97 and 902403, that added together give a square (902500 = 950²).

The spelling of 97902403 in words is "ninety-seven million, nine hundred two thousand, four hundred three".