6915442 has 4 divisors (see below), whose sum is σ = 10373166. Its totient is φ = 3457720.

The previous prime is 6915431. The next prime is 6915451. The reversal of 6915442 is 2445196.

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

It can be written as a sum of positive squares in only one way, i.e., 6702921 + 212521 = 2589^2 + 461^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1728859 + ... + 1728862.

Almost surely, 2^6915442 is an apocalyptic number.

6915442 is a deficient number, since it is larger than the sum of its proper divisors (3457724).

6915442 is a wasteful number, since it uses less digits than its factorization.

6915442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3457723.

The product of its digits is 8640, while the sum is 31.

The square root of 6915442 is about 2629.7227990798. The cubic root of 6915442 is about 190.5197404012.

It can be divided in two parts, 69154 and 42, that added together give a palindrome (69196).

The spelling of 6915442 in words is "six million, nine hundred fifteen thousand, four hundred forty-two".