87452783 has 4 divisors (see below), whose sum is σ = 95403048. Its totient is φ = 79502520.

The previous prime is 87452779. The next prime is 87452821. The reversal of 87452783 is 38725478.

It is a happy number.

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 87452783 - 2² = 87452779 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87452773) 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, 3975116 + ... + 3975137.

It is an arithmetic number, because the mean of its divisors is an integer number (23850762).

Almost surely, 2^87452783 is an apocalyptic number.

87452783 is a deficient number, since it is larger than the sum of its proper divisors (7950265).

87452783 is a wasteful number, since it uses less digits than its factorization.

87452783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7950264.

The product of its digits is 376320, while the sum is 44.

The square root of 87452783 is about 9351.6192715486. The cubic root of 87452783 is about 443.8721309540.

The spelling of 87452783 in words is "eighty-seven million, four hundred fifty-two thousand, seven hundred eighty-three".