6742865 has 4 divisors (see below), whose sum is σ = 8091444. Its totient is φ = 5394288.

The previous prime is 6742859. The next prime is 6742889. The reversal of 6742865 is 5682476.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2007889 + 4734976 = 1417^2 + 2176^2 .

It is a cyclic number.

It is not a de Polignac number, because 6742865 - 2¹⁴ = 6726481 is a prime.

It is a Duffinian 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, 674282 + ... + 674291.

It is an arithmetic number, because the mean of its divisors is an integer number (2022861).

Almost surely, 2^6742865 is an apocalyptic number.

It is an amenable number.

6742865 is a deficient number, since it is larger than the sum of its proper divisors (1348579).

6742865 is a wasteful number, since it uses less digits than its factorization.

6742865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348578.

The product of its digits is 80640, while the sum is 38.

The square root of 6742865 is about 2596.7027169085. The cubic root of 6742865 is about 188.9215448474.

The spelling of 6742865 in words is "six million, seven hundred forty-two thousand, eight hundred sixty-five".