172473366 has 64 divisors (see below), whose sum is σ = 391200768. Its totient is φ = 50295168.

The previous prime is 172473349. The next prime is 172473383. The reversal of 172473366 is 663374271.

172473366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (172473349) and next prime (172473383).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227460 + ... + 228216.

It is an arithmetic number, because the mean of its divisors is an integer number (6112512).

Almost surely, 2^172473366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172473366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195600384).

172473366 is an abundant number, since it is smaller than the sum of its proper divisors (218727402).

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

172473366 is a wasteful number, since it uses less digits than its factorization.

172473366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925.

The product of its digits is 127008, while the sum is 39.

The square root of 172473366 is about 13132.9115583712. The cubic root of 172473366 is about 556.6394894322.

The spelling of 172473366 in words is "one hundred seventy-two million, four hundred seventy-three thousand, three hundred sixty-six".