164797644 has 36 divisors (see below), whose sum is σ = 422666552. Its totient is φ = 49938240.

The previous prime is 164797637. The next prime is 164797649. The reversal of 164797644 is 446797461.

164797644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 164797593 and 164797602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164797649) 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, 55297 + ... + 58200.

Almost surely, 2^164797644 is an apocalyptic number.

It is an amenable number.

164797644 is an abundant number, since it is smaller than the sum of its proper divisors (257868908).

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

164797644 is a wasteful number, since it uses less digits than its factorization.

164797644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113526 (or 113513 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 48.

The square root of 164797644 is about 12837.3534655707. The cubic root of 164797644 is about 548.2563446282.

It can be divided in two parts, 1647976 and 44, that added together give a triangular number (1648020 = T₁₈₁₅).

The spelling of 164797644 in words is "one hundred sixty-four million, seven hundred ninety-seven thousand, six hundred forty-four".