86739642 has 48 divisors (see below), whose sum is σ = 205882560. Its totient is φ = 26174400.

The previous prime is 86739613. The next prime is 86739659. The reversal of 86739642 is 24693768.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54859 + ... + 56417.

It is an arithmetic number, because the mean of its divisors is an integer number (4289220).

Almost surely, 2^86739642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86739642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102941280).

86739642 is an abundant number, since it is smaller than the sum of its proper divisors (119142918).

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

86739642 is a wasteful number, since it uses less digits than its factorization.

86739642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859 (or 1856 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 86739642 is about 9313.4119419255. The cubic root of 86739642 is about 442.6623056809.

The spelling of 86739642 in words is "eighty-six million, seven hundred thirty-nine thousand, six hundred forty-two".