652766 has 16 divisors (see below), whose sum is σ = 1054944. Its totient is φ = 301824.

The previous prime is 652759. The next prime is 652787. The reversal of 652766 is 667256.

It is a super-2 number, since 2×652766² = 852206901512, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 652766.

It is an unprimeable number.

652766 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 7 ways as a sum of consecutive naturals, for example, 2351 + ... + 2613.

It is an arithmetic number, because the mean of its divisors is an integer number (65934).

2⁶⁵²⁷⁶⁶ is an apocalyptic number.

652766 is a deficient number, since it is larger than the sum of its proper divisors (402178).

652766 is a wasteful number, since it uses less digits than its factorization.

652766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355.

The product of its digits is 15120, while the sum is 32.

The square root of 652766 is about 807.9393541597. The cubic root of 652766 is about 86.7466093402.

The spelling of 652766 in words is "six hundred fifty-two thousand, seven hundred sixty-six".