800825631 has 16 divisors (see below), whose sum is σ = 1080887808. Its totient is φ = 527364000.

The previous prime is 800825617. The next prime is 800825677. The reversal of 800825631 is 136528008.

It is a happy number.

It is not a de Polignac number, because 800825631 - 2⁹ = 800825119 is a prime.

It is a super-2 number, since 2×800825631² = 1282643382533096322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 800825592 and 800825601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800825611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77110 + ... + 86876.

It is an arithmetic number, because the mean of its divisors is an integer number (67555488).

Almost surely, 2^800825631 is an apocalyptic number.

800825631 is a deficient number, since it is larger than the sum of its proper divisors (280062177).

800825631 is a wasteful number, since it uses less digits than its factorization.

800825631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10102.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 800825631 is about 28298.8627156640. The cubic root of 800825631 is about 928.6370102264.

The spelling of 800825631 in words is "eight hundred million, eight hundred twenty-five thousand, six hundred thirty-one".