6742537 has 4 divisors (see below), whose sum is σ = 6760260. Its totient is φ = 6724816.

The previous prime is 6742517. The next prime is 6742553. The reversal of 6742537 is 7352476.

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 866761 + 5875776 = 931^2 + 2424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6742537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6742507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8278 + ... + 9055.

It is an arithmetic number, because the mean of its divisors is an integer number (1690065).

Almost surely, 2^6742537 is an apocalyptic number.

It is an amenable number.

6742537 is a deficient number, since it is larger than the sum of its proper divisors (17723).

6742537 is a wasteful number, since it uses less digits than its factorization.

6742537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17722.

The product of its digits is 35280, while the sum is 34.

The square root of 6742537 is about 2596.6395591225. The cubic root of 6742537 is about 188.9184814971.

The spelling of 6742537 in words is "six million, seven hundred forty-two thousand, five hundred thirty-seven".