87084078 has 16 divisors (see below), whose sum is σ = 175964880. Its totient is φ = 28728576.

The previous prime is 87084031. The next prime is 87084083. The reversal of 87084078 is 87048078.

It is a super-2 number, since 2×87084078² = 15167273282220168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74233 + ... + 75396.

It is an arithmetic number, because the mean of its divisors is an integer number (10997805).

Almost surely, 2^87084078 is an apocalyptic number.

87084078 is an abundant number, since it is smaller than the sum of its proper divisors (88880802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87084078 is a wasteful number, since it uses less digits than its factorization.

87084078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149731.

The product of its (nonzero) digits is 100352, while the sum is 42.

The square root of 87084078 is about 9331.8850185801. The cubic root of 87084078 is about 443.2474570631.

It can be divided in two parts, 870 and 84078, that added together give a palindrome (84948).

The spelling of 87084078 in words is "eighty-seven million, eighty-four thousand, seventy-eight".