473476021 has 2 divisors, whose sum is σ = 473476022. Its totient is φ = 473476020.

The previous prime is 473476009. The next prime is 473476093. The reversal of 473476021 is 120674374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331604100 + 141871921 = 18210^2 + 11911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-473476021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (473476621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236738010 + 236738011.

It is an arithmetic number, because the mean of its divisors is an integer number (236738011).

Almost surely, 2^473476021 is an apocalyptic number.

It is an amenable number.

473476021 is a deficient number, since it is larger than the sum of its proper divisors (1).

473476021 is an equidigital number, since it uses as much as digits as its factorization.

473476021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 473476021 is about 21759.5041533579. The cubic root of 473476021 is about 779.4100409623.

The spelling of 473476021 in words is "four hundred seventy-three million, four hundred seventy-six thousand, twenty-one".