472774421 has 4 divisors (see below), whose sum is σ = 540313632. Its totient is φ = 405235212.

The previous prime is 472774417. The next prime is 472774427. The reversal of 472774421 is 124477274.

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 472774421 - 2² = 472774417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472774427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33769595 + ... + 33769608.

It is an arithmetic number, because the mean of its divisors is an integer number (135078408).

Almost surely, 2^472774421 is an apocalyptic number.

It is an amenable number.

472774421 is a deficient number, since it is larger than the sum of its proper divisors (67539211).

472774421 is an equidigital number, since it uses as much as digits as its factorization.

472774421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67539210.

The product of its digits is 87808, while the sum is 38.

The square root of 472774421 is about 21743.3764857255. The cubic root of 472774421 is about 779.0248722780.

The spelling of 472774421 in words is "four hundred seventy-two million, seven hundred seventy-four thousand, four hundred twenty-one".