652731 has 4 divisors (see below), whose sum is σ = 870312. Its totient is φ = 435152.

The previous prime is 652727. The next prime is 652733. The reversal of 652731 is 137256.

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 652731 - 2² = 652727 is a prime.

It is a super-2 number, since 2×652731² = 852115516722, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (652733) 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, 108786 + ... + 108791.

It is an arithmetic number, because the mean of its divisors is an integer number (217578).

2⁶⁵²⁷³¹ is an apocalyptic number.

652731 is a deficient number, since it is larger than the sum of its proper divisors (217581).

652731 is a wasteful number, since it uses less digits than its factorization.

652731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217580.

The product of its digits is 1260, while the sum is 24.

The square root of 652731 is about 807.9176938278. The cubic root of 652731 is about 86.7450589196.

Adding to 652731 its reverse (137256), we get a palindrome (789987).

The spelling of 652731 in words is "six hundred fifty-two thousand, seven hundred thirty-one".