658672 has 20 divisors (see below), whose sum is σ = 1458736. Its totient is φ = 282240.

The previous prime is 658663. The next prime is 658681. The reversal of 658672 is 276856.

It is an interprime number because it is at equal distance from previous prime (658663) and next prime (658681).

It is a congruent number.

It is an unprimeable number.

658672 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2829 + ... + 3052.

2⁶⁵⁸⁶⁷² is an apocalyptic number.

It is an amenable number.

658672 is an abundant number, since it is smaller than the sum of its proper divisors (800064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

658672 is a wasteful number, since it uses less digits than its factorization.

658672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5896 (or 5890 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 658672 is about 811.5861014088. The cubic root of 658672 is about 87.0074420022.

The spelling of 658672 in words is "six hundred fifty-eight thousand, six hundred seventy-two".