87078523 has 8 divisors (see below), whose sum is σ = 101396448. Its totient is φ = 73230144.

The previous prime is 87078517. The next prime is 87078553. The reversal of 87078523 is 32587078.

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

It is a cyclic number.

It is not a de Polignac number, because 87078523 - 2⁵ = 87078491 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87078553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116986 + ... + 117727.

It is an arithmetic number, because the mean of its divisors is an integer number (12674556).

Almost surely, 2^87078523 is an apocalyptic number.

87078523 is a deficient number, since it is larger than the sum of its proper divisors (14317925).

87078523 is a wasteful number, since it uses less digits than its factorization.

87078523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234773.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 87078523 is about 9331.5873783617. The cubic root of 87078523 is about 443.2380321026.

The spelling of 87078523 in words is "eighty-seven million, seventy-eight thousand, five hundred twenty-three".