455719897 has 2 divisors, whose sum is σ = 455719898. Its totient is φ = 455719896.

The previous prime is 455719877. The next prime is 455719909. The reversal of 455719897 is 798917554.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396368281 + 59351616 = 19909^2 + 7704^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-455719897 is a prime.

It is not a weakly prime, because it can be changed into another prime (455719877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227859948 + 227859949.

It is an arithmetic number, because the mean of its divisors is an integer number (227859949).

Almost surely, 2^455719897 is an apocalyptic number.

It is an amenable number.

455719897 is a deficient number, since it is larger than the sum of its proper divisors (1).

455719897 is an equidigital number, since it uses as much as digits as its factorization.

455719897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3175200, while the sum is 55.

The square root of 455719897 is about 21347.5969842041. The cubic root of 455719897 is about 769.5425950408.

The spelling of 455719897 in words is "four hundred fifty-five million, seven hundred nineteen thousand, eight hundred ninety-seven".