87130078 has 8 divisors (see below), whose sum is σ = 149365872. Its totient is φ = 37341456.

The previous prime is 87130037. The next prime is 87130081. The reversal of 87130078 is 87003178.

It is a happy number.

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

It is a congruent number.

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, 3111775 + ... + 3111802.

It is an arithmetic number, because the mean of its divisors is an integer number (18670734).

Almost surely, 2^87130078 is an apocalyptic number.

87130078 is a deficient number, since it is larger than the sum of its proper divisors (62235794).

87130078 is a wasteful number, since it uses less digits than its factorization.

87130078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6223586.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 87130078 is about 9334.3493613642. The cubic root of 87130078 is about 443.3254881433.

The spelling of 87130078 in words is "eighty-seven million, one hundred thirty thousand, seventy-eight".