45878487 has 4 divisors (see below), whose sum is σ = 61171320. Its totient is φ = 30585656.

The previous prime is 45878473. The next prime is 45878489. The reversal of 45878487 is 78487854.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45878487 - 2⁴ = 45878471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45878489) 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, 7646412 + ... + 7646417.

It is an arithmetic number, because the mean of its divisors is an integer number (15292830).

Almost surely, 2^45878487 is an apocalyptic number.

45878487 is a deficient number, since it is larger than the sum of its proper divisors (15292833).

45878487 is a wasteful number, since it uses less digits than its factorization.

45878487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15292832.

The product of its digits is 2007040, while the sum is 51.

The square root of 45878487 is about 6773.3660022178. The cubic root of 45878487 is about 357.9890111376.

The spelling of 45878487 in words is "forty-five million, eight hundred seventy-eight thousand, four hundred eighty-seven".