801725669 has 8 divisors (see below), whose sum is σ = 820776000. Its totient is φ = 782693856.

The previous prime is 801725579. The next prime is 801725693. The reversal of 801725669 is 966527108.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 801725669 - 2²⁰ = 800677093 is a prime.

It is a super-2 number, since 2×801725669² = 1285528096666995122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801725269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125849 + ... + 132065.

It is an arithmetic number, because the mean of its divisors is an integer number (102597000).

Almost surely, 2^801725669 is an apocalyptic number.

It is an amenable number.

801725669 is a deficient number, since it is larger than the sum of its proper divisors (19050331).

801725669 is a wasteful number, since it uses less digits than its factorization.

801725669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9259.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 801725669 is about 28314.7606205668. The cubic root of 801725669 is about 928.9847745178.

The spelling of 801725669 in words is "eight hundred one million, seven hundred twenty-five thousand, six hundred sixty-nine".