172473074 has 8 divisors (see below), whose sum is σ = 258880860. Its totient is φ = 86179456.

The previous prime is 172473073. The next prime is 172473083. The reversal of 172473074 is 470374271.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 120012025 + 52461049 = 10955^2 + 7243^2 .

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

It is a super-2 number, since 2×172473074² = 59493922510018952, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (172473073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24659 + ... + 30870.

Almost surely, 2^172473074 is an apocalyptic number.

172473074 is a deficient number, since it is larger than the sum of its proper divisors (86407786).

172473074 is a wasteful number, since it uses less digits than its factorization.

172473074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57084.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 172473074 is about 13132.9004412582. The cubic root of 172473074 is about 556.6391752990.

The spelling of 172473074 in words is "one hundred seventy-two million, four hundred seventy-three thousand, seventy-four".