652686077 has 2 divisors, whose sum is σ = 652686078. Its totient is φ = 652686076.

The previous prime is 652685993. The next prime is 652686091. The reversal of 652686077 is 770686256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 652342681 + 343396 = 25541^2 + 586^2 .

It is a cyclic number.

It is not a de Polignac number, because 652686077 - 2²⁸ = 384250621 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (652686577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326343038 + 326343039.

It is an arithmetic number, because the mean of its divisors is an integer number (326343039).

Almost surely, 2^652686077 is an apocalyptic number.

It is an amenable number.

652686077 is a deficient number, since it is larger than the sum of its proper divisors (1).

652686077 is an equidigital number, since it uses as much as digits as its factorization.

652686077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 652686077 is about 25547.7215618145. The cubic root of 652686077 is about 867.4306885134.

The spelling of 652686077 in words is "six hundred fifty-two million, six hundred eighty-six thousand, seventy-seven".