473976421 has 2 divisors, whose sum is σ = 473976422. Its totient is φ = 473976420.

The previous prime is 473976389. The next prime is 473976457. The reversal of 473976421 is 124679374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 462680100 + 11296321 = 21510^2 + 3361^2 .

It is a cyclic number.

It is not a de Polignac number, because 473976421 - 2⁵ = 473976389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (473976521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236988210 + 236988211.

It is an arithmetic number, because the mean of its divisors is an integer number (236988211).

Almost surely, 2^473976421 is an apocalyptic number.

It is an amenable number.

473976421 is a deficient number, since it is larger than the sum of its proper divisors (1).

473976421 is an equidigital number, since it uses as much as digits as its factorization.

473976421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 43.

The square root of 473976421 is about 21770.9995406734. Note that the first 3 decimals coincide. The cubic root of 473976421 is about 779.6845212243.

The spelling of 473976421 in words is "four hundred seventy-three million, nine hundred seventy-six thousand, four hundred twenty-one".