173072628 has 36 divisors (see below), whose sum is σ = 451604608. Its totient is φ = 55829520.

The previous prime is 173072623. The next prime is 173072639. The reversal of 173072628 is 826270371.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 173072592 and 173072601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173072623) 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, 76426 + ... + 78657.

Almost surely, 2^173072628 is an apocalyptic number.

173072628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

173072628 is an abundant number, since it is smaller than the sum of its proper divisors (278531980).

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

173072628 is a wasteful number, since it uses less digits than its factorization.

173072628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155124 (or 155119 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 173072628 is about 13155.7070505541. The cubic root of 173072628 is about 557.2834290547.

The spelling of 173072628 in words is "one hundred seventy-three million, seventy-two thousand, six hundred twenty-eight".