6939942 has 32 divisors (see below), whose sum is σ = 14606592. Its totient is φ = 2195424.

The previous prime is 6939941. The next prime is 6939943. The reversal of 6939942 is 2499396.

It is an interprime number because it is at equal distance from previous prime (6939941) and next prime (6939943).

It is a d-powerful number, because it can be written as 6⁶ + 9⁴ + 3³ + 9⁴ + 9⁷ + 4² + 2²¹ .

It is a junction number, because it is equal to n+sod(n) for n = 6939894 and 6939903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6939941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9183 + ... + 9909.

It is an arithmetic number, because the mean of its divisors is an integer number (456456).

Almost surely, 2^6939942 is an apocalyptic number.

6939942 is an abundant number, since it is smaller than the sum of its proper divisors (7666650).

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

6939942 is a wasteful number, since it uses less digits than its factorization.

6939942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812.

The product of its digits is 104976, while the sum is 42.

The square root of 6939942 is about 2634.3769661914. The cubic root of 6939942 is about 190.7444660798.

The spelling of 6939942 in words is "six million, nine hundred thirty-nine thousand, nine hundred forty-two".