478172701 has 4 divisors (see below), whose sum is σ = 484225600. Its totient is φ = 472119804.

The previous prime is 478172647. The next prime is 478172713. The reversal of 478172701 is 107271874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 478172701 - 2⁷ = 478172573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478172801) 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, 3026331 + ... + 3026488.

It is an arithmetic number, because the mean of its divisors is an integer number (121056400).

Almost surely, 2^478172701 is an apocalyptic number.

It is an amenable number.

478172701 is a deficient number, since it is larger than the sum of its proper divisors (6052899).

478172701 is an equidigital number, since it uses as much as digits as its factorization.

478172701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052898.

The product of its (nonzero) digits is 21952, while the sum is 37.

The square root of 478172701 is about 21867.1603323340. The cubic root of 478172701 is about 781.9787045350.

The spelling of 478172701 in words is "four hundred seventy-eight million, one hundred seventy-two thousand, seven hundred one".