829872436 has 6 divisors (see below), whose sum is σ = 1452276770. Its totient is φ = 414936216.

The previous prime is 829872427. The next prime is 829872451. The reversal of 829872436 is 634278928.

It can be written as a sum of positive squares in only one way, i.e., 797723536 + 32148900 = 28244^2 + 5670^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 829872436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103734051 + ... + 103734058.

Almost surely, 2^829872436 is an apocalyptic number.

It is an amenable number.

829872436 is a deficient number, since it is larger than the sum of its proper divisors (622404334).

829872436 is a wasteful number, since it uses less digits than its factorization.

829872436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207468113 (or 207468111 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The square root of 829872436 is about 28807.5065911647. The cubic root of 829872436 is about 939.7314896271.

The spelling of 829872436 in words is "eight hundred twenty-nine million, eight hundred seventy-two thousand, four hundred thirty-six".