455961997 has 2 divisors, whose sum is σ = 455961998. Its totient is φ = 455961996.

The previous prime is 455961953. The next prime is 455962027. The reversal of 455961997 is 799169554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 406667556 + 49294441 = 20166^2 + 7021^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-455961997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (455961797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227980998 + 227980999.

It is an arithmetic number, because the mean of its divisors is an integer number (227980999).

Almost surely, 2^455961997 is an apocalyptic number.

It is an amenable number.

455961997 is a deficient number, since it is larger than the sum of its proper divisors (1).

455961997 is an equidigital number, since it uses as much as digits as its factorization.

455961997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3061800, while the sum is 55.

The square root of 455961997 is about 21353.2666587574. The cubic root of 455961997 is about 769.6788434116.

The spelling of 455961997 in words is "four hundred fifty-five million, nine hundred sixty-one thousand, nine hundred ninety-seven".