677667373 has 2 divisors, whose sum is σ = 677667374. Its totient is φ = 677667372.

The previous prime is 677667371. The next prime is 677667407. The reversal of 677667373 is 373766776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 574177444 + 103489929 = 23962^2 + 10173^2 .

It is a cyclic number.

It is not a de Polignac number, because 677667373 - 2¹ = 677667371 is a prime.

It is a super-2 number, since 2×677667373² = 918466136857442258, which contains 22 as substring.

Together with 677667371, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 677667373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677667371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338833686 + 338833687.

It is an arithmetic number, because the mean of its divisors is an integer number (338833687).

Almost surely, 2^677667373 is an apocalyptic number.

It is an amenable number.

677667373 is a deficient number, since it is larger than the sum of its proper divisors (1).

677667373 is an equidigital number, since it uses as much as digits as its factorization.

677667373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4667544, while the sum is 52.

The square root of 677667373 is about 26032.0451175085. The cubic root of 677667373 is about 878.3592762588.

The spelling of 677667373 in words is "six hundred seventy-seven million, six hundred sixty-seven thousand, three hundred seventy-three".