6745389 has 12 divisors (see below), whose sum is σ = 10462464. Its totient is φ = 3854424.

The previous prime is 6745369. The next prime is 6745391. The reversal of 6745389 is 9835476.

It is a happy number.

It is not a de Polignac number, because 6745389 - 2⁵ = 6745357 is a prime.

It is a super-2 number, since 2×6745389² = 91000545522642, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

6745389 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6745389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6745369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22797 + ... + 23090.

It is an arithmetic number, because the mean of its divisors is an integer number (871872).

Almost surely, 2^6745389 is an apocalyptic number.

It is an amenable number.

6745389 is a deficient number, since it is larger than the sum of its proper divisors (3717075).

6745389 is a wasteful number, since it uses less digits than its factorization.

6745389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45904 (or 45897 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 6745389 is about 2597.1886723917. The cubic root of 6745389 is about 188.9451143783.

The spelling of 6745389 in words is "six million, seven hundred forty-five thousand, three hundred eighty-nine".