677956801 has 2 divisors, whose sum is σ = 677956802. Its totient is φ = 677956800.

The previous prime is 677956789. The next prime is 677956823. The reversal of 677956801 is 108659776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 642673201 + 35283600 = 25351^2 + 5940^2 .

It is a cyclic number.

It is not a de Polignac number, because 677956801 - 2⁷ = 677956673 is a prime.

It is not a weakly prime, because it can be changed into another prime (677956871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338978400 + 338978401.

It is an arithmetic number, because the mean of its divisors is an integer number (338978401).

Almost surely, 2^677956801 is an apocalyptic number.

It is an amenable number.

677956801 is a deficient number, since it is larger than the sum of its proper divisors (1).

677956801 is an equidigital number, since it uses as much as digits as its factorization.

677956801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 677956801 is about 26037.6035955692. The cubic root of 677956801 is about 878.4843059292.

The spelling of 677956801 in words is "six hundred seventy-seven million, nine hundred fifty-six thousand, eight hundred one".