214536986 has 4 divisors (see below), whose sum is σ = 321805482. Its totient is φ = 107268492.

The previous prime is 214536967. The next prime is 214537021. The reversal of 214536986 is 689635412.

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., 195132961 + 19404025 = 13969^2 + 4405^2 .

It is a super-2 number, since 2×214536986² = 92052236723928392, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53634245 + ... + 53634248.

Almost surely, 2^214536986 is an apocalyptic number.

214536986 is a deficient number, since it is larger than the sum of its proper divisors (107268496).

214536986 is a wasteful number, since it uses less digits than its factorization.

214536986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107268495.

The product of its digits is 311040, while the sum is 44.

The square root of 214536986 is about 14647.0811426714. The cubic root of 214536986 is about 598.6422874190.

The spelling of 214536986 in words is "two hundred fourteen million, five hundred thirty-six thousand, nine hundred eighty-six".