986166439 has 4 divisors (see below), whose sum is σ = 1012819624. Its totient is φ = 959513256.

The previous prime is 986166407. The next prime is 986166449. The reversal of 986166439 is 934661689.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 934661689 = 13 ⋅71897053.

It is a cyclic number.

It is not a de Polignac number, because 986166439 - 2⁵ = 986166407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986166449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13326537 + ... + 13326610.

It is an arithmetic number, because the mean of its divisors is an integer number (253204906).

Almost surely, 2^986166439 is an apocalyptic number.

986166439 is a deficient number, since it is larger than the sum of its proper divisors (26653185).

986166439 is a wasteful number, since it uses less digits than its factorization.

986166439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26653184.

The product of its digits is 1679616, while the sum is 52.

The square root of 986166439 is about 31403.2870731712. The cubic root of 986166439 is about 995.3673850188.

The spelling of 986166439 in words is "nine hundred eighty-six million, one hundred sixty-six thousand, four hundred thirty-nine".