164392899 has 12 divisors (see below), whose sum is σ = 240928968. Its totient is φ = 99631840.

The previous prime is 164392897. The next prime is 164392919. The reversal of 164392899 is 998293461.

It is not a de Polignac number, because 164392899 - 2¹ = 164392897 is a prime.

It is a super-3 number, since 3×164392899³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (164392897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226074 + ... + 226799.

It is an arithmetic number, because the mean of its divisors is an integer number (20077414).

Almost surely, 2^164392899 is an apocalyptic number.

164392899 is a deficient number, since it is larger than the sum of its proper divisors (76536069).

164392899 is a wasteful number, since it uses less digits than its factorization.

164392899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452898 (or 452887 counting only the distinct ones).

The product of its digits is 839808, while the sum is 51.

The square root of 164392899 is about 12821.5794268881. The cubic root of 164392899 is about 547.8071352758.

The spelling of 164392899 in words is "one hundred sixty-four million, three hundred ninety-two thousand, eight hundred ninety-nine".