164427858 has 24 divisors (see below), whose sum is σ = 407155008. Its totient is φ = 46979352.

The previous prime is 164427839. The next prime is 164427871. The reversal of 164427858 is 858724461.

164427858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×164427858³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 652366 + ... + 652617.

It is an arithmetic number, because the mean of its divisors is an integer number (16964792).

Almost surely, 2^164427858 is an apocalyptic number.

164427858 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

164427858 is an abundant number, since it is smaller than the sum of its proper divisors (242727150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164427858 is a wasteful number, since it uses less digits than its factorization.

164427858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304998 (or 1304995 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 164427858 is about 12822.9426419991. The cubic root of 164427858 is about 547.8459638636.

The spelling of 164427858 in words is "one hundred sixty-four million, four hundred twenty-seven thousand, eight hundred fifty-eight".