452591487 has 12 divisors (see below), whose sum is σ = 676286520. Its totient is φ = 291323088.

The previous prime is 452591479. The next prime is 452591519. The reversal of 452591487 is 784195254.

452591487 is a `hidden beast` number, since 4 + 52 + 591 + 4 + 8 + 7 = 666.

It is not a de Polignac number, because 452591487 - 2³ = 452591479 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452591287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 866773 + ... + 867294.

It is an arithmetic number, because the mean of its divisors is an integer number (56357210).

Almost surely, 2^452591487 is an apocalyptic number.

452591487 is a deficient number, since it is larger than the sum of its proper divisors (223695033).

452591487 is a wasteful number, since it uses less digits than its factorization.

452591487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734102 (or 1734099 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 452591487 is about 21274.1976816988. The cubic root of 452591487 is about 767.7776405010. Note that the first 3 decimals are identical.

The spelling of 452591487 in words is "four hundred fifty-two million, five hundred ninety-one thousand, four hundred eighty-seven".