87342778 has 8 divisors (see below), whose sum is σ = 131175072. Its totient is φ = 43617756.

The previous prime is 87342769. The next prime is 87342793. The reversal of 87342778 is 87724378.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24750 + ... + 28057.

It is an arithmetic number, because the mean of its divisors is an integer number (16396884).

Almost surely, 2^87342778 is an apocalyptic number.

87342778 is a deficient number, since it is larger than the sum of its proper divisors (43832294).

87342778 is a wasteful number, since it uses less digits than its factorization.

87342778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53636.

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

The square root of 87342778 is about 9345.7358190781. The cubic root of 87342778 is about 443.6859404189.

The spelling of 87342778 in words is "eighty-seven million, three hundred forty-two thousand, seven hundred seventy-eight".