472904661 has 16 divisors (see below), whose sum is σ = 669608640. Its totient is φ = 296029440.

The previous prime is 472904651. The next prime is 472904671. The reversal of 472904661 is 166409274.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (472904651) and next prime (472904671).

It is not a de Polignac number, because 472904661 - 2⁷ = 472904533 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472904611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30270 + ... + 43151.

It is an arithmetic number, because the mean of its divisors is an integer number (41850540).

Almost surely, 2^472904661 is an apocalyptic number.

It is an amenable number.

472904661 is a deficient number, since it is larger than the sum of its proper divisors (196703979).

472904661 is a wasteful number, since it uses less digits than its factorization.

472904661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73556.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 472904661 is about 21746.3712145268. The cubic root of 472904661 is about 779.0964010238.

The spelling of 472904661 in words is "four hundred seventy-two million, nine hundred four thousand, six hundred sixty-one".