6989438 has 4 divisors (see below), whose sum is σ = 10484160. Its totient is φ = 3494718.

The previous prime is 6989429. The next prime is 6989443. The reversal of 6989438 is 8349896.

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

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 6989392 and 6989401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1747358 + ... + 1747361.

It is an arithmetic number, because the mean of its divisors is an integer number (2621040).

Almost surely, 2^6989438 is an apocalyptic number.

6989438 is a deficient number, since it is larger than the sum of its proper divisors (3494722).

6989438 is a wasteful number, since it uses less digits than its factorization.

6989438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494721.

The product of its digits is 373248, while the sum is 47.

The square root of 6989438 is about 2643.7545271829. The cubic root of 6989438 is about 191.1968585176.

The spelling of 6989438 in words is "six million, nine hundred eighty-nine thousand, four hundred thirty-eight".