890406099 has 18 divisors (see below), whose sum is σ = 1403532156. Its totient is φ = 539460120.

The previous prime is 890405983. The next prime is 890406103. The reversal of 890406099 is 990604098.

It is not a de Polignac number, because 890406099 - 2⁸ = 890405843 is a prime.

It is a super-2 number, since 2×890406099² = 1585646042272795602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (890406299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 295402 + ... + 298400.

Almost surely, 2^890406099 is an apocalyptic number.

890406099 is a deficient number, since it is larger than the sum of its proper divisors (513126057).

890406099 is an equidigital number, since it uses as much as digits as its factorization.

890406099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6015 (or 3013 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 890406099 is about 29839.6732388275. The cubic root of 890406099 is about 962.0464514952.

The spelling of 890406099 in words is "eight hundred ninety million, four hundred six thousand, ninety-nine".