164790999 has 6 divisors (see below), whose sum is σ = 238031456. Its totient is φ = 109860660.

The previous prime is 164790973. The next prime is 164791019. The reversal of 164790999 is 999097461.

164790999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164790999 - 2¹⁷ = 164659927 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 (164790949) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9155047 + ... + 9155064.

Almost surely, 2^164790999 is an apocalyptic number.

164790999 is a deficient number, since it is larger than the sum of its proper divisors (73240457).

164790999 is a wasteful number, since it uses less digits than its factorization.

164790999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18310117 (or 18310114 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 54.

The square root of 164790999 is about 12837.0946479334. The cubic root of 164790999 is about 548.2489755658.

The spelling of 164790999 in words is "one hundred sixty-four million, seven hundred ninety thousand, nine hundred ninety-nine".