899956407 has 16 divisors (see below), whose sum is σ = 1371941120. Its totient is φ = 514043712.

The previous prime is 899956399. The next prime is 899956411. The reversal of 899956407 is 704659998.

It is not a de Polignac number, because 899956407 - 2³ = 899956399 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 (899956427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51219 + ... + 66507.

It is an arithmetic number, because the mean of its divisors is an integer number (85746320).

Almost surely, 2^899956407 is an apocalyptic number.

899956407 is a deficient number, since it is larger than the sum of its proper divisors (471984713).

899956407 is a wasteful number, since it uses less digits than its factorization.

899956407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18102.

The product of its (nonzero) digits is 4898880, while the sum is 57.

The square root of 899956407 is about 29999.2734412019. The cubic root of 899956407 is about 965.4737959914.

The spelling of 899956407 in words is "eight hundred ninety-nine million, nine hundred fifty-six thousand, four hundred seven".