677350081 has 2 divisors, whose sum is σ = 677350082. Its totient is φ = 677350080.

The previous prime is 677350049. The next prime is 677350087. The reversal of 677350081 is 180053776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 555026481 + 122323600 = 23559^2 + 11060^2 .

It is a cyclic number.

It is not a de Polignac number, because 677350081 - 2⁵ = 677350049 is a prime.

It is a super-2 number, since 2×677350081² = 917606264461413122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 677350081.

It is not a weakly prime, because it can be changed into another prime (677350087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338675040 + 338675041.

It is an arithmetic number, because the mean of its divisors is an integer number (338675041).

Almost surely, 2^677350081 is an apocalyptic number.

It is an amenable number.

677350081 is a deficient number, since it is larger than the sum of its proper divisors (1).

677350081 is an equidigital number, since it uses as much as digits as its factorization.

677350081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 677350081 is about 26025.9501459601. The cubic root of 677350081 is about 878.2221687386. Note that the first 3 decimals are identical.

The spelling of 677350081 in words is "six hundred seventy-seven million, three hundred fifty thousand, eighty-one".