457480921 has 2 divisors, whose sum is σ = 457480922. Its totient is φ = 457480920.

The previous prime is 457480909. The next prime is 457480927. The reversal of 457480921 is 129084754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318122896 + 139358025 = 17836^2 + 11805^2 .

It is a cyclic number.

It is not a de Polignac number, because 457480921 - 2⁵ = 457480889 is a prime.

It is not a weakly prime, because it can be changed into another prime (457480927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228740460 + 228740461.

It is an arithmetic number, because the mean of its divisors is an integer number (228740461).

Almost surely, 2^457480921 is an apocalyptic number.

It is an amenable number.

457480921 is a deficient number, since it is larger than the sum of its proper divisors (1).

457480921 is an equidigital number, since it uses as much as digits as its factorization.

457480921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 457480921 is about 21388.8036364823. The cubic root of 457480921 is about 770.5325606818.

The spelling of 457480921 in words is "four hundred fifty-seven million, four hundred eighty thousand, nine hundred twenty-one".