652417679 has 4 divisors (see below), whose sum is σ = 652732080. Its totient is φ = 652103280.

The previous prime is 652417643. The next prime is 652417691. The reversal of 652417679 is 976714256.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-652417679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652416679) 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, 154067 + ... + 158244.

It is an arithmetic number, because the mean of its divisors is an integer number (163183020).

Almost surely, 2^652417679 is an apocalyptic number.

652417679 is a deficient number, since it is larger than the sum of its proper divisors (314401).

652417679 is a wasteful number, since it uses less digits than its factorization.

652417679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314400.

The product of its digits is 635040, while the sum is 47.

The square root of 652417679 is about 25542.4681462070. The cubic root of 652417679 is about 867.3117704044.

The spelling of 652417679 in words is "six hundred fifty-two million, four hundred seventeen thousand, six hundred seventy-nine".