83663475 has 96 divisors (see below), whose sum is σ = 167370240. Its totient is φ = 36080640.

The previous prime is 83663467. The next prime is 83663483. The reversal of 83663475 is 57436638.

It is an interprime number because it is at equal distance from previous prime (83663467) and next prime (83663483).

It is not a de Polignac number, because 83663475 - 2³ = 83663467 is a prime.

Its product of digits (362880) is a multiple of the sum of its prime factors (189).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1146039 + ... + 1146111.

It is an arithmetic number, because the mean of its divisors is an integer number (1743440).

Almost surely, 2^83663475 is an apocalyptic number.

83663475 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

83663475 is a wasteful number, since it uses less digits than its factorization.

83663475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 184 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 83663475 is about 9146.7740214788. The cubic root of 83663475 is about 437.3662829445.

The spelling of 83663475 in words is "eighty-three million, six hundred sixty-three thousand, four hundred seventy-five".