472991 has 4 divisors (see below), whose sum is σ = 500832. Its totient is φ = 445152.

The previous prime is 472963. The next prime is 472993. The reversal of 472991 is 199274.

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 472991 - 2¹⁴ = 456607 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 (472993) 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, 13895 + ... + 13928.

It is an arithmetic number, because the mean of its divisors is an integer number (125208).

2⁴⁷²⁹⁹¹ is an apocalyptic number.

472991 is a deficient number, since it is larger than the sum of its proper divisors (27841).

472991 is a wasteful number, since it uses less digits than its factorization.

472991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27840.

The product of its digits is 4536, while the sum is 32.

The square root of 472991 is about 687.7434114552. The cubic root of 472991 is about 77.9143811786.

The spelling of 472991 in words is "four hundred seventy-two thousand, nine hundred ninety-one".