899505907 has 4 divisors (see below), whose sum is σ = 899641080. Its totient is φ = 899370736.

The previous prime is 899505857. The next prime is 899505941. The reversal of 899505907 is 709505998.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 709505998 = 2 ⋅354752999.

It is a cyclic number.

It is not a de Polignac number, because 899505907 - 2¹¹ = 899503859 is a prime.

It is a super-2 number, since 2×899505907² = 1618221753455785298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (899505947) 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, 57058 + ... + 71095.

It is an arithmetic number, because the mean of its divisors is an integer number (224910270).

Almost surely, 2^899505907 is an apocalyptic number.

899505907 is a deficient number, since it is larger than the sum of its proper divisors (135173).

899505907 is a wasteful number, since it uses less digits than its factorization.

899505907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135172.

The product of its (nonzero) digits is 1020600, while the sum is 52.

The square root of 899505907 is about 29991.7639861346. The cubic root of 899505907 is about 965.3126702091.

The spelling of 899505907 in words is "eight hundred ninety-nine million, five hundred five thousand, nine hundred seven".