899279690 has 32 divisors (see below), whose sum is σ = 1731853440. Its totient is φ = 335188800.

The previous prime is 899279687. The next prime is 899279699. The reversal of 899279690 is 96972998.

It is a super-2 number, since 2×899279690² = 1617407921692992200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (899279699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27206 + ... + 50385.

It is an arithmetic number, because the mean of its divisors is an integer number (54120420).

Almost surely, 2^899279690 is an apocalyptic number.

899279690 is a deficient number, since it is larger than the sum of its proper divisors (832573750).

899279690 is a wasteful number, since it uses less digits than its factorization.

899279690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77678.

The product of its (nonzero) digits is 4408992, while the sum is 59.

The square root of 899279690 is about 29987.9924303045. The cubic root of 899279690 is about 965.2317411705.

The spelling of 899279690 in words is "eight hundred ninety-nine million, two hundred seventy-nine thousand, six hundred ninety".