97823475 has 36 divisors (see below), whose sum is σ = 178206600. Its totient is φ = 51281280.

The previous prime is 97823437. The next prime is 97823477. The reversal of 97823475 is 57432879.

It is not a de Polignac number, because 97823475 - 2¹³ = 97815283 is a prime.

It is a super-2 number, since 2×97823475² = 19138864522151250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 97823475.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97823477) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9591 + ... + 16959.

Almost surely, 2^97823475 is an apocalyptic number.

97823475 is a deficient number, since it is larger than the sum of its proper divisors (80383125).

97823475 is a wasteful number, since it uses less digits than its factorization.

97823475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7444 (or 7436 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 97823475 is about 9890.5750591156. The cubic root of 97823475 is about 460.7666406288.

The spelling of 97823475 in words is "ninety-seven million, eight hundred twenty-three thousand, four hundred seventy-five".