86985694 has 4 divisors (see below), whose sum is σ = 130478544. Its totient is φ = 43492846.

The previous prime is 86985671. The next prime is 86985697. The reversal of 86985694 is 49658968.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86985697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21746422 + ... + 21746425.

It is an arithmetic number, because the mean of its divisors is an integer number (32619636).

Almost surely, 2^86985694 is an apocalyptic number.

86985694 is a deficient number, since it is larger than the sum of its proper divisors (43492850).

86985694 is a wasteful number, since it uses less digits than its factorization.

86985694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43492849.

The product of its digits is 3732480, while the sum is 55.

The square root of 86985694 is about 9326.6121394641. The cubic root of 86985694 is about 443.0804732643.

The spelling of 86985694 in words is "eighty-six million, nine hundred eighty-five thousand, six hundred ninety-four".