677266973 has 2 divisors, whose sum is σ = 677266974. Its totient is φ = 677266972.

The previous prime is 677266897. The next prime is 677266999. The reversal of 677266973 is 379662776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 567058969 + 110208004 = 23813^2 + 10498^2 .

It is a cyclic number.

It is not a de Polignac number, because 677266973 - 2²⁰ = 676218397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677266273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338633486 + 338633487.

It is an arithmetic number, because the mean of its divisors is an integer number (338633487).

Almost surely, 2^677266973 is an apocalyptic number.

It is an amenable number.

677266973 is a deficient number, since it is larger than the sum of its proper divisors (1).

677266973 is an equidigital number, since it uses as much as digits as its factorization.

677266973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4000752, while the sum is 53.

The square root of 677266973 is about 26024.3534597884. The cubic root of 677266973 is about 878.1862492166.

The spelling of 677266973 in words is "six hundred seventy-seven million, two hundred sixty-six thousand, nine hundred seventy-three".