652947691 has 4 divisors (see below), whose sum is σ = 712306584. Its totient is φ = 593588800.

The previous prime is 652947677. The next prime is 652947727. The reversal of 652947691 is 196749256.

It is a happy number.

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 652947691 - 2⁷ = 652947563 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (652947601) 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, 29679430 + ... + 29679451.

It is an arithmetic number, because the mean of its divisors is an integer number (178076646).

Almost surely, 2^652947691 is an apocalyptic number.

652947691 is a deficient number, since it is larger than the sum of its proper divisors (59358893).

652947691 is a wasteful number, since it uses less digits than its factorization.

652947691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59358892.

The product of its digits is 816480, while the sum is 49.

The square root of 652947691 is about 25552.8411531869. The cubic root of 652947691 is about 867.5465694894.

The spelling of 652947691 in words is "six hundred fifty-two million, nine hundred forty-seven thousand, six hundred ninety-one".