677481001 has 2 divisors, whose sum is σ = 677481002. Its totient is φ = 677481000.

The previous prime is 677480981. The next prime is 677481017. The reversal of 677481001 is 100184776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 655616025 + 21864976 = 25605^2 + 4676^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677481001 is a prime.

It is not a weakly prime, because it can be changed into another prime (677481401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338740500 + 338740501.

It is an arithmetic number, because the mean of its divisors is an integer number (338740501).

Almost surely, 2^677481001 is an apocalyptic number.

It is an amenable number.

677481001 is a deficient number, since it is larger than the sum of its proper divisors (1).

677481001 is an equidigital number, since it uses as much as digits as its factorization.

677481001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 677481001 is about 26028.4652063851. The cubic root of 677481001 is about 878.2787467882.

The spelling of 677481001 in words is "six hundred seventy-seven million, four hundred eighty-one thousand, one".