677001001 has 2 divisors, whose sum is σ = 677001002. Its totient is φ = 677001000.

The previous prime is 677000953. The next prime is 677001023. The reversal of 677001001 is 100100776.

It is an a-pointer prime, because the next prime (677001023) can be obtained adding 677001001 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 411278400 + 265722601 = 20280^2 + 16301^2 .

It is a cyclic number.

It is not a de Polignac number, because 677001001 - 2⁷ = 677000873 is a prime.

677001001 is a modest number, since divided by 1001 gives 677 as remainder.

It is not a weakly prime, because it can be changed into another prime (677001041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338500500 + 338500501.

It is an arithmetic number, because the mean of its divisors is an integer number (338500501).

Almost surely, 2^677001001 is an apocalyptic number.

It is an amenable number.

677001001 is a deficient number, since it is larger than the sum of its proper divisors (1).

677001001 is an equidigital number, since it uses as much as digits as its factorization.

677001001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 677001001 is about 26019.2428982859. The cubic root of 677001001 is about 878.0712755825.

Adding to 677001001 its reverse (100100776), we get a palindrome (777101777).

The spelling of 677001001 in words is "six hundred seventy-seven million, one thousand, one".