652977571 has 2 divisors, whose sum is σ = 652977572. Its totient is φ = 652977570.

The previous prime is 652977551. The next prime is 652977623. The reversal of 652977571 is 175779256.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 652977571 - 2⁵ = 652977539 is a prime.

It is not a weakly prime, because it can be changed into another prime (652977551) 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 as a sum of consecutive naturals, namely, 326488785 + 326488786.

It is an arithmetic number, because the mean of its divisors is an integer number (326488786).

Almost surely, 2^652977571 is an apocalyptic number.

652977571 is a deficient number, since it is larger than the sum of its proper divisors (1).

652977571 is an equidigital number, since it uses as much as digits as its factorization.

652977571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 926100, while the sum is 49.

The square root of 652977571 is about 25553.4258172950. The cubic root of 652977571 is about 867.5598027577.

It can be divided in two parts, 6529 and 77571, that added together give a square (84100 = 290²).

The spelling of 652977571 in words is "six hundred fifty-two million, nine hundred seventy-seven thousand, five hundred seventy-one".