801371969 has 2 divisors, whose sum is σ = 801371970. Its totient is φ = 801371968.

The previous prime is 801371947. The next prime is 801372007. The reversal of 801371969 is 969173108.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 591121969 + 210250000 = 24313^2 + 14500^2 .

It is a cyclic number.

It is not a de Polignac number, because 801371969 - 2¹² = 801367873 is a prime.

It is a super-2 number, since 2×801371969² = 1284394065397873922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (801371929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400685984 + 400685985.

It is an arithmetic number, because the mean of its divisors is an integer number (400685985).

Almost surely, 2^801371969 is an apocalyptic number.

It is an amenable number.

801371969 is a deficient number, since it is larger than the sum of its proper divisors (1).

801371969 is an equidigital number, since it uses as much as digits as its factorization.

801371969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 801371969 is about 28308.5140726249. The cubic root of 801371969 is about 928.8481399807.

The spelling of 801371969 in words is "eight hundred one million, three hundred seventy-one thousand, nine hundred sixty-nine".