472629391 has 4 divisors (see below), whose sum is σ = 508985512. Its totient is φ = 436273272.

The previous prime is 472629361. The next prime is 472629397. The reversal of 472629391 is 193926274.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 472629391 - 2²³ = 464240783 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 (472629397) 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, 18178041 + ... + 18178066.

It is an arithmetic number, because the mean of its divisors is an integer number (127246378).

Almost surely, 2^472629391 is an apocalyptic number.

472629391 is a deficient number, since it is larger than the sum of its proper divisors (36356121).

472629391 is a wasteful number, since it uses less digits than its factorization.

472629391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36356120.

The product of its digits is 163296, while the sum is 43.

The square root of 472629391 is about 21740.0411913133. The cubic root of 472629391 is about 778.9452052973.

The spelling of 472629391 in words is "four hundred seventy-two million, six hundred twenty-nine thousand, three hundred ninety-one".