6989390 has 8 divisors (see below), whose sum is σ = 12580920. Its totient is φ = 2795752.

The previous prime is 6989387. The next prime is 6989419. The reversal of 6989390 is 939896.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349460 + ... + 349479.

It is an arithmetic number, because the mean of its divisors is an integer number (1572615).

Almost surely, 2^6989390 is an apocalyptic number.

6989390 is a deficient number, since it is larger than the sum of its proper divisors (5591530).

6989390 is a wasteful number, since it uses less digits than its factorization.

6989390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698946.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 6989390 is about 2643.7454491687. The cubic root of 6989390 is about 191.1964208348.

The spelling of 6989390 in words is "six million, nine hundred eighty-nine thousand, three hundred ninety".