6942257 has 4 divisors (see below), whose sum is σ = 7934016. Its totient is φ = 5950500.

The previous prime is 6942241. The next prime is 6942263. The reversal of 6942257 is 7522496.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6942257 - 2⁴ = 6942241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6942217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495869 + ... + 495882.

It is an arithmetic number, because the mean of its divisors is an integer number (1983504).

Almost surely, 2^6942257 is an apocalyptic number.

It is an amenable number.

6942257 is a deficient number, since it is larger than the sum of its proper divisors (991759).

6942257 is an equidigital number, since it uses as much as digits as its factorization.

6942257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991758.

The product of its digits is 30240, while the sum is 35.

The square root of 6942257 is about 2634.8163123831. The cubic root of 6942257 is about 190.7656729981.

The spelling of 6942257 in words is "six million, nine hundred forty-two thousand, two hundred fifty-seven".