801070681 has 2 divisors, whose sum is σ = 801070682. Its totient is φ = 801070680.

The previous prime is 801070649. The next prime is 801070687. The reversal of 801070681 is 186070108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 602260681 + 198810000 = 24541^2 + 14100^2 .

It is a cyclic number.

It is not a de Polignac number, because 801070681 - 2⁵ = 801070649 is a prime.

It is a super-2 number, since 2×801070681² = 1283428471915607522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (801070687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400535340 + 400535341.

It is an arithmetic number, because the mean of its divisors is an integer number (400535341).

Almost surely, 2^801070681 is an apocalyptic number.

It is an amenable number.

801070681 is a deficient number, since it is larger than the sum of its proper divisors (1).

801070681 is an equidigital number, since it uses as much as digits as its factorization.

801070681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 801070681 is about 28303.1920637938. The cubic root of 801070681 is about 928.7317205201.

The spelling of 801070681 in words is "eight hundred one million, seventy thousand, six hundred eighty-one".