164628723 has 8 divisors (see below), whose sum is σ = 250862848. Its totient is φ = 94073544.

The previous prime is 164628701. The next prime is 164628743. The reversal of 164628723 is 327826461.

It is a happy number.

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

It is not a de Polignac number, because 164628723 - 2¹² = 164624627 is a prime.

It is a super-2 number, since 2×164628723² = 54205232873221458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164628743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3919711 + ... + 3919752.

It is an arithmetic number, because the mean of its divisors is an integer number (31357856).

Almost surely, 2^164628723 is an apocalyptic number.

164628723 is a deficient number, since it is larger than the sum of its proper divisors (86234125).

164628723 is an equidigital number, since it uses as much as digits as its factorization.

164628723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7839473.

The product of its digits is 96768, while the sum is 39.

The square root of 164628723 is about 12830.7725020748. The cubic root of 164628723 is about 548.0689558831.

The spelling of 164628723 in words is "one hundred sixty-four million, six hundred twenty-eight thousand, seven hundred twenty-three".