6942487 has 4 divisors (see below), whose sum is σ = 6971536. Its totient is φ = 6913440.

The previous prime is 6942469. The next prime is 6942491. The reversal of 6942487 is 7842496.

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

It is a cyclic number.

It is not a de Polignac number, because 6942487 - 2⁷ = 6942359 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6942497) 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, 14163 + ... + 14644.

It is an arithmetic number, because the mean of its divisors is an integer number (1742884).

Almost surely, 2^6942487 is an apocalyptic number.

6942487 is a deficient number, since it is larger than the sum of its proper divisors (29049).

6942487 is a wasteful number, since it uses less digits than its factorization.

6942487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29048.

The product of its digits is 96768, while the sum is 40.

The square root of 6942487 is about 2634.8599583280. The cubic root of 6942487 is about 190.7677796914.

Subtracting 6942487 from its reverse (7842496), we obtain a palindrome (900009).

The spelling of 6942487 in words is "six million, nine hundred forty-two thousand, four hundred eighty-seven".