658172063 has 4 divisors (see below), whose sum is σ = 664957440. Its totient is φ = 651386688.

The previous prime is 658172041. The next prime is 658172069. The reversal of 658172063 is 360271856.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 658172063 - 2⁸ = 658171807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (658172069) 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, 3392543 + ... + 3392736.

It is an arithmetic number, because the mean of its divisors is an integer number (166239360).

Almost surely, 2^658172063 is an apocalyptic number.

658172063 is a deficient number, since it is larger than the sum of its proper divisors (6785377).

658172063 is an equidigital number, since it uses as much as digits as its factorization.

658172063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6785376.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 658172063 is about 25654.8643145895. The cubic root of 658172063 is about 869.8542332963.

The spelling of 658172063 in words is "six hundred fifty-eight million, one hundred seventy-two thousand, sixty-three".