652798667 has 4 divisors (see below), whose sum is σ = 652955160. Its totient is φ = 652642176.

The previous prime is 652798661. The next prime is 652798697. The reversal of 652798667 is 766897256.

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 652798667 - 2⁶ = 652798603 is a prime.

It is a super-2 number, since 2×652798667² = 852292199273953778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652798661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71813 + ... + 80390.

It is an arithmetic number, because the mean of its divisors is an integer number (163238790).

Almost surely, 2^652798667 is an apocalyptic number.

652798667 is a deficient number, since it is larger than the sum of its proper divisors (156493).

652798667 is a wasteful number, since it uses less digits than its factorization.

652798667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156492.

The product of its digits is 7620480, while the sum is 56.

The square root of 652798667 is about 25549.9249901052. The cubic root of 652798667 is about 867.4805636420.

The spelling of 652798667 in words is "six hundred fifty-two million, seven hundred ninety-eight thousand, six hundred sixty-seven".