899659983 has 4 divisors (see below), whose sum is σ = 1199546648. Its totient is φ = 599773320.

The previous prime is 899659939. The next prime is 899660017. The reversal of 899659983 is 389956998.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 899659983 - 2⁶ = 899659919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899659483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149943328 + ... + 149943333.

It is an arithmetic number, because the mean of its divisors is an integer number (299886662).

Almost surely, 2^899659983 is an apocalyptic number.

899659983 is a deficient number, since it is larger than the sum of its proper divisors (299886665).

899659983 is a wasteful number, since it uses less digits than its factorization.

899659983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299886664.

The product of its digits is 37791360, while the sum is 66.

The square root of 899659983 is about 29994.3325146602. The cubic root of 899659983 is about 965.3677830671.

The spelling of 899659983 in words is "eight hundred ninety-nine million, six hundred fifty-nine thousand, nine hundred eighty-three".