86981298 has 16 divisors (see below), whose sum is σ = 175503456. Its totient is φ = 28736960.

The previous prime is 86981273. The next prime is 86981309. The reversal of 86981298 is 89218968.

It is a self number, because there is not a number n which added to its sum of digits gives 86981298.

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, 63468 + ... + 64823.

It is an arithmetic number, because the mean of its divisors is an integer number (10968966).

Almost surely, 2^86981298 is an apocalyptic number.

86981298 is an abundant number, since it is smaller than the sum of its proper divisors (88522158).

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

86981298 is a wasteful number, since it uses less digits than its factorization.

86981298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128409.

The product of its digits is 497664, while the sum is 51.

The square root of 86981298 is about 9326.3764667742. The cubic root of 86981298 is about 443.0730091459.

Subtracting 86981298 from its reverse (89218968), we obtain a triangular number (2237670 = T₂₁₁₅).

The spelling of 86981298 in words is "eighty-six million, nine hundred eighty-one thousand, two hundred ninety-eight".