658061 has 4 divisors (see below), whose sum is σ = 660000. Its totient is φ = 656124.

The previous prime is 658057. The next prime is 658069. The reversal of 658061 is 160856.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 658061 - 2² = 658057 is a prime.

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 658061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (658069) 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, 311 + ... + 1188.

It is an arithmetic number, because the mean of its divisors is an integer number (165000).

2⁶⁵⁸⁰⁶¹ is an apocalyptic number.

It is an amenable number.

658061 is a deficient number, since it is larger than the sum of its proper divisors (1939).

658061 is a wasteful number, since it uses less digits than its factorization.

658061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 658061 is about 811.2095906731. The cubic root of 658061 is about 86.9805302801.

The spelling of 658061 in words is "six hundred fifty-eight thousand, sixty-one".