452978487 has 48 divisors (see below), whose sum is σ = 769292160. Its totient is φ = 264049632.

The previous prime is 452978483. The next prime is 452978503. The reversal of 452978487 is 784879254.

It is a happy number.

452978487 is a `hidden beast` number, since 4 + 529 + 78 + 48 + 7 = 666.

It is not a de Polignac number, because 452978487 - 2² = 452978483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452978483) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56248 + ... + 63794.

It is an arithmetic number, because the mean of its divisors is an integer number (16026920).

Almost surely, 2^452978487 is an apocalyptic number.

452978487 is a deficient number, since it is larger than the sum of its proper divisors (316313673).

452978487 is a wasteful number, since it uses less digits than its factorization.

452978487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7594 (or 7582 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 452978487 is about 21283.2912633361. The cubic root of 452978487 is about 767.9964141678.

The spelling of 452978487 in words is "four hundred fifty-two million, nine hundred seventy-eight thousand, four hundred eighty-seven".