87378472 has 32 divisors (see below), whose sum is σ = 171460800. Its totient is φ = 41666944.

The previous prime is 87378439. The next prime is 87378481. The reversal of 87378472 is 27487378.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107604 + ... + 108412.

It is an arithmetic number, because the mean of its divisors is an integer number (5358150).

Almost surely, 2^87378472 is an apocalyptic number.

It is an amenable number.

87378472 is a deficient number, since it is larger than the sum of its proper divisors (84082328).

87378472 is a wasteful number, since it uses less digits than its factorization.

87378472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425 (or 1421 counting only the distinct ones).

The product of its digits is 526848, while the sum is 46.

The square root of 87378472 is about 9347.6452649852. The cubic root of 87378472 is about 443.7463719336.

The spelling of 87378472 in words is "eighty-seven million, three hundred seventy-eight thousand, four hundred seventy-two".