446538457 has 2 divisors, whose sum is σ = 446538458. Its totient is φ = 446538456.

The previous prime is 446538427. The next prime is 446538479. The reversal of 446538457 is 754835644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 429981696 + 16556761 = 20736^2 + 4069^2 .

It is a cyclic number.

It is not a de Polignac number, because 446538457 - 2²³ = 438149849 is a prime.

It is not a weakly prime, because it can be changed into another prime (446538427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223269228 + 223269229.

It is an arithmetic number, because the mean of its divisors is an integer number (223269229).

Almost surely, 2^446538457 is an apocalyptic number.

It is an amenable number.

446538457 is a deficient number, since it is larger than the sum of its proper divisors (1).

446538457 is an equidigital number, since it uses as much as digits as its factorization.

446538457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1612800, while the sum is 46.

The square root of 446538457 is about 21131.4565754469. The cubic root of 446538457 is about 764.3394739870.

The spelling of 446538457 in words is "four hundred forty-six million, five hundred thirty-eight thousand, four hundred fifty-seven".