7275389 has 8 divisors (see below), whose sum is σ = 7960032. Its totient is φ = 6594640.

The previous prime is 7275379. The next prime is 7275391. The reversal of 7275389 is 9835727.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7275389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7275379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4127 + ... + 5619.

It is an arithmetic number, because the mean of its divisors is an integer number (995004).

Almost surely, 2^7275389 is an apocalyptic number.

It is an amenable number.

7275389 is a deficient number, since it is larger than the sum of its proper divisors (684643).

7275389 is a wasteful number, since it uses less digits than its factorization.

7275389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947.

The product of its digits is 105840, while the sum is 41.

The square root of 7275389 is about 2697.2929021521. The cubic root of 7275389 is about 193.7694945352.

It can be divided in two parts, 727 and 5389, that added together give a palindrome (6116).

The spelling of 7275389 in words is "seven million, two hundred seventy-five thousand, three hundred eighty-nine".