620882693 has 2 divisors, whose sum is σ = 620882694. Its totient is φ = 620882692.

The previous prime is 620882659. The next prime is 620882701. The reversal of 620882693 is 396288026.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 586753729 + 34128964 = 24223^2 + 5842^2 .

It is a cyclic number.

It is not a de Polignac number, because 620882693 - 2⁶ = 620882629 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 (620881693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310441346 + 310441347.

It is an arithmetic number, because the mean of its divisors is an integer number (310441347).

Almost surely, 2^620882693 is an apocalyptic number.

It is an amenable number.

620882693 is a deficient number, since it is larger than the sum of its proper divisors (1).

620882693 is an equidigital number, since it uses as much as digits as its factorization.

620882693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 620882693 is about 24917.5177937129. The cubic root of 620882693 is about 853.1063698795.

The spelling of 620882693 in words is "six hundred twenty million, eight hundred eighty-two thousand, six hundred ninety-three".