472861 has 4 divisors (see below), whose sum is σ = 474300. Its totient is φ = 471424.

The previous prime is 472859. The next prime is 472883. The reversal of 472861 is 168274.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 168274 = 2 ⋅84137.

It can be written as a sum of positive squares in 2 ways, for example, as 164836 + 308025 = 406^2 + 555^2 .

It is a cyclic number.

It is not a de Polignac number, because 472861 - 2¹ = 472859 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472831) 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, 45 + ... + 973.

It is an arithmetic number, because the mean of its divisors is an integer number (118575).

2⁴⁷²⁸⁶¹ is an apocalyptic number.

It is an amenable number.

472861 is a deficient number, since it is larger than the sum of its proper divisors (1439).

472861 is an equidigital number, since it uses as much as digits as its factorization.

472861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438.

The product of its digits is 2688, while the sum is 28.

The square root of 472861 is about 687.6488929679. The cubic root of 472861 is about 77.9072423552.

The spelling of 472861 in words is "four hundred seventy-two thousand, eight hundred sixty-one".