86969842 has 8 divisors (see below), whose sum is σ = 130741596. Its totient is φ = 43389312.

The previous prime is 86969833. The next prime is 86969843. The reversal of 86969842 is 24896968.

It can be written as a sum of positive squares in 2 ways, for example, as 63824121 + 23145721 = 7989^2 + 4811^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 86969842.

It is not an unprimeable number, because it can be changed into a prime (86969843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46663 + ... + 48490.

Almost surely, 2^86969842 is an apocalyptic number.

86969842 is a deficient number, since it is larger than the sum of its proper divisors (43771754).

86969842 is a wasteful number, since it uses less digits than its factorization.

86969842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95612.

The product of its digits is 1492992, while the sum is 52.

The square root of 86969842 is about 9325.7622744739. The cubic root of 86969842 is about 443.0535564307.

The spelling of 86969842 in words is "eighty-six million, nine hundred sixty-nine thousand, eight hundred forty-two".