899684154 has 12 divisors (see below), whose sum is σ = 1949315706. Its totient is φ = 299894712.

The previous prime is 899684131. The next prime is 899684167. The reversal of 899684154 is 451486998.

It can be written as a sum of positive squares in only one way, i.e., 892635129 + 7049025 = 29877^2 + 2655^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 899684154.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24991209 + ... + 24991244.

Almost surely, 2^899684154 is an apocalyptic number.

899684154 is an abundant number, since it is smaller than the sum of its proper divisors (1049631552).

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

899684154 is a wasteful number, since it uses less digits than its factorization.

899684154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49982461 (or 49982458 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 899684154 is about 29994.7354380731. The cubic root of 899684154 is about 965.3764284428.

The spelling of 899684154 in words is "eight hundred ninety-nine million, six hundred eighty-four thousand, one hundred fifty-four".