85937986 has 4 divisors (see below), whose sum is σ = 128906982. Its totient is φ = 42968992.

The previous prime is 85937981. The next prime is 85937993. The reversal of 85937986 is 68973958.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 79762761 + 6175225 = 8931^2 + 2485^2 .

It is not an unprimeable number, because it can be changed into a prime (85937981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21484495 + ... + 21484498.

Almost surely, 2^85937986 is an apocalyptic number.

85937986 is a deficient number, since it is larger than the sum of its proper divisors (42968996).

85937986 is a wasteful number, since it uses less digits than its factorization.

85937986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42968995.

The product of its digits is 3265920, while the sum is 55.

The square root of 85937986 is about 9270.2743217232. The cubic root of 85937986 is about 441.2943737926.

The spelling of 85937986 in words is "eighty-five million, nine hundred thirty-seven thousand, nine hundred eighty-six".