939949686 has 48 divisors (see below), whose sum is σ = 2322238464. Its totient is φ = 272201472.

The previous prime is 939949657. The next prime is 939949693. The reversal of 939949686 is 686949939.

It is a super-2 number, since 2×939949686² = 1767010824422997192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114166 + ... + 122121.

It is an arithmetic number, because the mean of its divisors is an integer number (48379968).

Almost surely, 2^939949686 is an apocalyptic number.

939949686 is an abundant number, since it is smaller than the sum of its proper divisors (1382288778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

939949686 is a wasteful number, since it uses less digits than its factorization.

939949686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236325 (or 236322 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 63.

The square root of 939949686 is about 30658.5988916650. The cubic root of 939949686 is about 979.5686307812.

It can be divided in two parts, 939 and 949686, that added together give a square (950625 = 975²).

The spelling of 939949686 in words is "nine hundred thirty-nine million, nine hundred forty-nine thousand, six hundred eighty-six".