831216900 has 36 divisors (see below), whose sum is σ = 2404988432. Its totient is φ = 221657760.

The previous prime is 831216889. The next prime is 831216917. The reversal of 831216900 is 9612138.

It is a super-2 number, since 2×831216900² = 1381843069691220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1385062 + ... + 1385661.

Almost surely, 2^831216900 is an apocalyptic number.

It is an amenable number.

831216900 is an abundant number, since it is smaller than the sum of its proper divisors (1573771532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

831216900 is a wasteful number, since it uses less digits than its factorization.

831216900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770740 (or 2770733 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 831216900 is about 28830.8324541627. The cubic root of 831216900 is about 940.2386974923.

The spelling of 831216900 in words is "eight hundred thirty-one million, two hundred sixteen thousand, nine hundred".