164889674 has 8 divisors (see below), whose sum is σ = 247392768. Its totient is φ = 82425420.

The previous prime is 164889661. The next prime is 164889689. The reversal of 164889674 is 476988461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5969 + ... + 19115.

It is an arithmetic number, because the mean of its divisors is an integer number (30924096).

Almost surely, 2^164889674 is an apocalyptic number.

164889674 is a deficient number, since it is larger than the sum of its proper divisors (82503094).

164889674 is a wasteful number, since it uses less digits than its factorization.

164889674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19420.

The product of its digits is 2322432, while the sum is 53.

The square root of 164889674 is about 12840.9374268392. The cubic root of 164889674 is about 548.3583821752.

It can be divided in two parts, 16488 and 9674, that added together give a palindrome (26162).

The spelling of 164889674 in words is "one hundred sixty-four million, eight hundred eighty-nine thousand, six hundred seventy-four".