472891393 has 32 divisors (see below), whose sum is σ = 537384960. Its totient is φ = 413337600.

The previous prime is 472891373. The next prime is 472891403. The reversal of 472891393 is 393198274.

It is a de Polignac number, because none of the positive numbers 2^k-472891393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472891303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4682043 + ... + 4682143.

It is an arithmetic number, because the mean of its divisors is an integer number (16793280).

Almost surely, 2^472891393 is an apocalyptic number.

It is an amenable number.

472891393 is a deficient number, since it is larger than the sum of its proper divisors (64493567).

472891393 is a wasteful number, since it uses less digits than its factorization.

472891393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337.

The product of its digits is 326592, while the sum is 46.

The square root of 472891393 is about 21746.0661499960. The cubic root of 472891393 is about 779.0891147435.

The spelling of 472891393 in words is "four hundred seventy-two million, eight hundred ninety-one thousand, three hundred ninety-three".