899964137 has 4 divisors (see below), whose sum is σ = 900831360. Its totient is φ = 899096916.

The previous prime is 899964119. The next prime is 899964151. The reversal of 899964137 is 731469998.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 899964137 - 2⁶ = 899964073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (899964437) 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, 432053 + ... + 434130.

It is an arithmetic number, because the mean of its divisors is an integer number (225207840).

Almost surely, 2^899964137 is an apocalyptic number.

It is an amenable number.

899964137 is a deficient number, since it is larger than the sum of its proper divisors (867223).

899964137 is a wasteful number, since it uses less digits than its factorization.

899964137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867222.

The product of its digits is 2939328, while the sum is 56.

The square root of 899964137 is about 29999.4022773788. The cubic root of 899964137 is about 965.4765602331.

The spelling of 899964137 in words is "eight hundred ninety-nine million, nine hundred sixty-four thousand, one hundred thirty-seven".