802621869 has 32 divisors (see below), whose sum is σ = 1291659264. Its totient is φ = 433392960.

The previous prime is 802621849. The next prime is 802621903. The reversal of 802621869 is 968126208.

It is not a de Polignac number, because 802621869 - 2⁸ = 802621613 is a prime.

It is a super-2 number, since 2×802621869² = 1288403729194106322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 802621869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802621849) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30079 + ... + 50099.

It is an arithmetic number, because the mean of its divisors is an integer number (40364352).

Almost surely, 2^802621869 is an apocalyptic number.

It is an amenable number.

802621869 is a deficient number, since it is larger than the sum of its proper divisors (489037395).

802621869 is a wasteful number, since it uses less digits than its factorization.

802621869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20137.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 802621869 is about 28330.5818683627. The cubic root of 802621869 is about 929.3307973360.

The spelling of 802621869 in words is "eight hundred two million, six hundred twenty-one thousand, eight hundred sixty-nine".