86939854 has 16 divisors (see below), whose sum is σ = 136177200. Its totient is φ = 41575744.

The previous prime is 86939837. The next prime is 86939857. The reversal of 86939854 is 45893968.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86939857) 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, 799 + ... + 13210.

It is an arithmetic number, because the mean of its divisors is an integer number (8511075).

Almost surely, 2^86939854 is an apocalyptic number.

86939854 is a deficient number, since it is larger than the sum of its proper divisors (49237346).

86939854 is a wasteful number, since it uses less digits than its factorization.

86939854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14147.

The product of its digits is 1866240, while the sum is 52.

The square root of 86939854 is about 9324.1543316271. The cubic root of 86939854 is about 443.0026275987.

The spelling of 86939854 in words is "eighty-six million, nine hundred thirty-nine thousand, eight hundred fifty-four".