454099993 has 2 divisors, whose sum is σ = 454099994. Its totient is φ = 454099992.

The previous prime is 454099973. The next prime is 454100033. The reversal of 454099993 is 399990454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442176784 + 11923209 = 21028^2 + 3453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-454099993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 454099993.

It is not a weakly prime, because it can be changed into another prime (454099963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227049996 + 227049997.

It is an arithmetic number, because the mean of its divisors is an integer number (227049997).

Almost surely, 2^454099993 is an apocalyptic number.

It is an amenable number.

454099993 is a deficient number, since it is larger than the sum of its proper divisors (1).

454099993 is an equidigital number, since it uses as much as digits as its factorization.

454099993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The square root of 454099993 is about 21309.6220754851. The cubic root of 454099993 is about 768.6297060061.

The spelling of 454099993 in words is "four hundred fifty-four million, ninety-nine thousand, nine hundred ninety-three".