6690934 has 4 divisors (see below), whose sum is σ = 10036404. Its totient is φ = 3345466.

The previous prime is 6690923. The next prime is 6690941. The reversal of 6690934 is 4390966.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 6690893 and 6690902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1672732 + ... + 1672735.

It is an arithmetic number, because the mean of its divisors is an integer number (2509101).

Almost surely, 2^6690934 is an apocalyptic number.

6690934 is a deficient number, since it is larger than the sum of its proper divisors (3345470).

6690934 is a wasteful number, since it uses less digits than its factorization.

6690934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3345469.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 6690934 is about 2586.6839776053. The cubic root of 6690934 is about 188.4352935954.

Subtracting from 6690934 its reverse (4390966), we obtain a cube (2299968 = 132³).

The spelling of 6690934 in words is "six million, six hundred ninety thousand, nine hundred thirty-four".