6939490 has 16 divisors (see below), whose sum is σ = 12530880. Its totient is φ = 2766960.

The previous prime is 6939487. The next prime is 6939509. The reversal of 6939490 is 949396.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2875 + ... + 4705.

It is an arithmetic number, because the mean of its divisors is an integer number (783180).

Almost surely, 2^6939490 is an apocalyptic number.

6939490 is a deficient number, since it is larger than the sum of its proper divisors (5591390).

6939490 is a wasteful number, since it uses less digits than its factorization.

6939490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 6939490 is about 2634.2911760092. The cubic root of 6939490 is about 190.7403249131.

The spelling of 6939490 in words is "six million, nine hundred thirty-nine thousand, four hundred ninety".