97992403 has 4 divisors (see below), whose sum is σ = 103756680. Its totient is φ = 92228128.

The previous prime is 97992379. The next prime is 97992463. The reversal of 97992403 is 30429979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30429979 = 3643 ⋅8353.

It is not a de Polignac number, because 97992403 - 2⁵ = 97992371 is a prime.

It is a super-2 number, since 2×97992403² = 19205022091428818, which contains 22 as substring.

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 97992403.

It is not an unprimeable number, because it can be changed into a prime (97992463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2882113 + ... + 2882146.

It is an arithmetic number, because the mean of its divisors is an integer number (25939170).

Almost surely, 2^97992403 is an apocalyptic number.

97992403 is a deficient number, since it is larger than the sum of its proper divisors (5764277).

97992403 is a wasteful number, since it uses less digits than its factorization.

97992403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5764276.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 97992403 is about 9899.1112227311. Note that the first 3 decimals coincide. The cubic root of 97992403 is about 461.0317154679.

The spelling of 97992403 in words is "ninety-seven million, nine hundred ninety-two thousand, four hundred three".