801625969 has 9 divisors (see below), whose sum is σ = 838675929. Its totient is φ = 766149780.

The previous prime is 801625961. The next prime is 801626011. The reversal of 801625969 is 969526108.

The square root of 801625969 is 28313.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 801625969 - 2³ = 801625961 is a prime.

It is a super-2 number, since 2×801625969² = 1285208388350377922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801625961) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 650584 + ... + 651814.

Almost surely, 2^801625969 is an apocalyptic number.

801625969 is the 28313-rd square number.

801625969 is the 14157-th centered octagonal number.

It is an amenable number.

801625969 is a deficient number, since it is larger than the sum of its proper divisors (37049960).

801625969 is an frugal number, since it uses more digits than its factorization.

801625969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508 (or 1254 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 46.

The cubic root of 801625969 is about 928.9462644118.

The spelling of 801625969 in words is "eight hundred one million, six hundred twenty-five thousand, nine hundred sixty-nine".