472820461 has 2 divisors, whose sum is σ = 472820462. Its totient is φ = 472820460.

The previous prime is 472820449. The next prime is 472820479. The reversal of 472820461 is 164028274.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 460917961 + 11902500 = 21469^2 + 3450^2 .

It is a cyclic number.

It is not a de Polignac number, because 472820461 - 2⁵ = 472820429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472820431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236410230 + 236410231.

It is an arithmetic number, because the mean of its divisors is an integer number (236410231).

Almost surely, 2^472820461 is an apocalyptic number.

It is an amenable number.

472820461 is a deficient number, since it is larger than the sum of its proper divisors (1).

472820461 is an equidigital number, since it uses as much as digits as its factorization.

472820461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 472820461 is about 21744.4351731656. The cubic root of 472820461 is about 779.0501592785.

The spelling of 472820461 in words is "four hundred seventy-two million, eight hundred twenty thousand, four hundred sixty-one".