677983651 has 2 divisors, whose sum is σ = 677983652. Its totient is φ = 677983650.

The previous prime is 677983637. The next prime is 677983699. The reversal of 677983651 is 156389776.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 677983651 - 2⁹ = 677983139 is a prime.

It is not a weakly prime, because it can be changed into another prime (677983151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338991825 + 338991826.

It is an arithmetic number, because the mean of its divisors is an integer number (338991826).

Almost surely, 2^677983651 is an apocalyptic number.

677983651 is a deficient number, since it is larger than the sum of its proper divisors (1).

677983651 is an equidigital number, since it uses as much as digits as its factorization.

677983651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 52.

The square root of 677983651 is about 26038.1191909093. The cubic root of 677983651 is about 878.4959030262.

The spelling of 677983651 in words is "six hundred seventy-seven million, nine hundred eighty-three thousand, six hundred fifty-one".