472469391 has 24 divisors (see below), whose sum is σ = 702290160. Its totient is φ = 305859456.

The previous prime is 472469383. The next prime is 472469399. The reversal of 472469391 is 193964274.

It is a happy number.

472469391 is a `hidden beast` number, since 472 + 4 + 6 + 93 + 91 = 666.

It is an interprime number because it is at equal distance from previous prime (472469383) and next prime (472469399).

It is not a de Polignac number, because 472469391 - 2³ = 472469383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472469399) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218371 + ... + 220523.

It is an arithmetic number, because the mean of its divisors is an integer number (29262090).

Almost surely, 2^472469391 is an apocalyptic number.

472469391 is a deficient number, since it is larger than the sum of its proper divisors (229820769).

472469391 is a wasteful number, since it uses less digits than its factorization.

472469391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2855 (or 2852 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 472469391 is about 21736.3610339909. The cubic root of 472469391 is about 778.8572961788.

The spelling of 472469391 in words is "four hundred seventy-two million, four hundred sixty-nine thousand, three hundred ninety-one".