6939156 has 24 divisors (see below), whose sum is σ = 18504640. Its totient is φ = 1982592.

The previous prime is 6939151. The next prime is 6939173. The reversal of 6939156 is 6519396.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6939151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41221 + ... + 41388.

Almost surely, 2^6939156 is an apocalyptic number.

It is an amenable number.

6939156 is an abundant number, since it is smaller than the sum of its proper divisors (11565484).

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

6939156 is a wasteful number, since it uses less digits than its factorization.

6939156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82623 (or 82621 counting only the distinct ones).

The product of its digits is 43740, while the sum is 39.

The square root of 6939156 is about 2634.2277805839. The cubic root of 6939156 is about 190.7372647319.

Adding to 6939156 its product of digits (43740), we get a palindrome (6982896).

The spelling of 6939156 in words is "six million, nine hundred thirty-nine thousand, one hundred fifty-six".