86978342 has 16 divisors (see below), whose sum is σ = 146176272. Its totient is φ = 38466720.

The previous prime is 86978329. The next prime is 86978347. The reversal of 86978342 is 24387968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86978347) 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, 52613 + ... + 54240.

It is an arithmetic number, because the mean of its divisors is an integer number (9136017).

Almost surely, 2^86978342 is an apocalyptic number.

86978342 is a deficient number, since it is larger than the sum of its proper divisors (59197930).

86978342 is a wasteful number, since it uses less digits than its factorization.

86978342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106903.

The product of its digits is 580608, while the sum is 47.

The square root of 86978342 is about 9326.2179901609. The cubic root of 86978342 is about 443.0679899111.

The spelling of 86978342 in words is "eighty-six million, nine hundred seventy-eight thousand, three hundred forty-two".