652289761 has 8 divisors (see below), whose sum is σ = 672419880. Its totient is φ = 632291328.

The previous prime is 652289749. The next prime is 652289767. The reversal of 652289761 is 167982256.

It can be written as a sum of positive squares in 4 ways, for example, as 300502225 + 351787536 = 17335^2 + 18756^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 652289761 - 2⁹ = 652289249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652289767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22816 + ... + 42721.

It is an arithmetic number, because the mean of its divisors is an integer number (84052485).

Almost surely, 2^652289761 is an apocalyptic number.

It is an amenable number.

652289761 is a deficient number, since it is larger than the sum of its proper divisors (20130119).

652289761 is a wasteful number, since it uses less digits than its factorization.

652289761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65843.

The product of its digits is 362880, while the sum is 46.

The square root of 652289761 is about 25539.9639976254. The cubic root of 652289761 is about 867.2550827730.

The spelling of 652289761 in words is "six hundred fifty-two million, two hundred eighty-nine thousand, seven hundred sixty-one".