472923691 has 4 divisors (see below), whose sum is σ = 473043384. Its totient is φ = 472804000.

The previous prime is 472923679. The next prime is 472923727. The reversal of 472923691 is 196329274.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472923691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472923601) 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, 53710 + ... + 61891.

It is an arithmetic number, because the mean of its divisors is an integer number (118260846).

Almost surely, 2^472923691 is an apocalyptic number.

472923691 is a deficient number, since it is larger than the sum of its proper divisors (119693).

472923691 is a wasteful number, since it uses less digits than its factorization.

472923691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119692.

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

The square root of 472923691 is about 21746.8087543897. The cubic root of 472923691 is about 779.1068513371.

The spelling of 472923691 in words is "four hundred seventy-two million, nine hundred twenty-three thousand, six hundred ninety-one".