6729390 has 24 divisors (see below), whose sum is σ = 17496648. Its totient is φ = 1794480.

The previous prime is 6729389. The next prime is 6729419. The reversal of 6729390 is 939276.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37296 + ... + 37475.

It is an arithmetic number, because the mean of its divisors is an integer number (729027).

Almost surely, 2^6729390 is an apocalyptic number.

6729390 is an abundant number, since it is smaller than the sum of its proper divisors (10767258).

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

6729390 is a wasteful number, since it uses less digits than its factorization.

6729390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74784 (or 74781 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 6729390 is about 2594.1067826903. The cubic root of 6729390 is about 188.7956134371.

The spelling of 6729390 in words is "six million, seven hundred twenty-nine thousand, three hundred ninety".