454087999 has 4 divisors (see below), whose sum is σ = 455325664. Its totient is φ = 452850336.

The previous prime is 454087981. The next prime is 454088027. The reversal of 454087999 is 999780454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999780454 = 2 ⋅499890227.

It is a cyclic number.

It is not a de Polignac number, because 454087999 - 2⁵ = 454087967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454087399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618282 + ... + 619015.

It is an arithmetic number, because the mean of its divisors is an integer number (113831416).

Almost surely, 2^454087999 is an apocalyptic number.

454087999 is a deficient number, since it is larger than the sum of its proper divisors (1237665).

454087999 is a wasteful number, since it uses less digits than its factorization.

454087999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237664.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 454087999 is about 21309.3406514608. The cubic root of 454087999 is about 768.6229387551.

The spelling of 454087999 in words is "four hundred fifty-four million, eighty-seven thousand, nine hundred ninety-nine".