86078998 has 4 divisors (see below), whose sum is σ = 129118500. Its totient is φ = 43039498.

The previous prime is 86078977. The next prime is 86079013. The reversal of 86078998 is 89987068.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21519748 + ... + 21519751.

It is an arithmetic number, because the mean of its divisors is an integer number (32279625).

Almost surely, 2^86078998 is an apocalyptic number.

86078998 is a deficient number, since it is larger than the sum of its proper divisors (43039502).

86078998 is a wasteful number, since it uses less digits than its factorization.

86078998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43039501.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The square root of 86078998 is about 9277.8768045281. The cubic root of 86078998 is about 441.5356089766.

The spelling of 86078998 in words is "eighty-six million, seventy-eight thousand, nine hundred ninety-eight".