652900405 has 8 divisors (see below), whose sum is σ = 784272312. Its totient is φ = 521792448.

The previous prime is 652900399. The next prime is 652900421. The reversal of 652900405 is 504009256.

It can be written as a sum of positive squares in 4 ways, for example, as 315737361 + 337163044 = 17769^2 + 18362^2 .

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 652900405 - 2⁵ = 652900373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60502 + ... + 70471.

It is an arithmetic number, because the mean of its divisors is an integer number (98034039).

Almost surely, 2^652900405 is an apocalyptic number.

It is an amenable number.

652900405 is a deficient number, since it is larger than the sum of its proper divisors (131371907).

652900405 is a wasteful number, since it uses less digits than its factorization.

652900405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131975.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 652900405 is about 25551.9158772879. The cubic root of 652900405 is about 867.5256266185.

The spelling of 652900405 in words is "six hundred fifty-two million, nine hundred thousand, four hundred five".