652172965 has 4 divisors (see below), whose sum is σ = 782607564. Its totient is φ = 521738368.

The previous prime is 652172953. The next prime is 652172971. The reversal of 652172965 is 569271256.

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

It can be written as a sum of positive squares in 2 ways, for example, as 239351841 + 412821124 = 15471^2 + 20318^2 .

It is a cyclic number.

It is not a de Polignac number, because 652172965 - 2¹⁷ = 652041893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65217292 + ... + 65217301.

It is an arithmetic number, because the mean of its divisors is an integer number (195651891).

Almost surely, 2^652172965 is an apocalyptic number.

It is an amenable number.

652172965 is a deficient number, since it is larger than the sum of its proper divisors (130434599).

652172965 is a wasteful number, since it uses less digits than its factorization.

652172965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130434598.

The product of its digits is 226800, while the sum is 43.

The square root of 652172965 is about 25537.6773611071. The cubic root of 652172965 is about 867.2033174498.

The spelling of 652172965 in words is "six hundred fifty-two million, one hundred seventy-two thousand, nine hundred sixty-five".