458521663 has 4 divisors (see below), whose sum is σ = 461820520. Its totient is φ = 455222808.

The previous prime is 458521607. The next prime is 458521703. The reversal of 458521663 is 366125854.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366125854 = 2 ⋅183062927.

It is a cyclic number.

It is not a de Polignac number, because 458521663 - 2¹⁷ = 458390591 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 (458525663) 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, 1649220 + ... + 1649497.

It is an arithmetic number, because the mean of its divisors is an integer number (115455130).

Almost surely, 2^458521663 is an apocalyptic number.

458521663 is a deficient number, since it is larger than the sum of its proper divisors (3298857).

458521663 is a wasteful number, since it uses less digits than its factorization.

458521663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3298856.

The product of its digits is 172800, while the sum is 40.

The square root of 458521663 is about 21413.1189461040. The cubic root of 458521663 is about 771.1164234673.

The spelling of 458521663 in words is "four hundred fifty-eight million, five hundred twenty-one thousand, six hundred sixty-three".