899891194 has 8 divisors (see below), whose sum is σ = 1350004500. Its totient is φ = 449889696.

The previous prime is 899891189. The next prime is 899891197. The reversal of 899891194 is 491198998.

It can be written as a sum of positive squares in 2 ways, for example, as 896223969 + 3667225 = 29937^2 + 1915^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×899891194² = 1619608322077491272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (899891197) 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, 3579 + ... + 42574.

Almost surely, 2^899891194 is an apocalyptic number.

899891194 is a deficient number, since it is larger than the sum of its proper divisors (450113306).

899891194 is a wasteful number, since it uses less digits than its factorization.

899891194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55904.

The product of its digits is 1679616, while the sum is 58.

The square root of 899891194 is about 29998.1865118543. The cubic root of 899891194 is about 965.4504752458.

The spelling of 899891194 in words is "eight hundred ninety-nine million, eight hundred ninety-one thousand, one hundred ninety-four".