6987733 has 4 divisors (see below), whose sum is σ = 7102348. Its totient is φ = 6873120.

The previous prime is 6987727. The next prime is 6987737. The reversal of 6987733 is 3377896.

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 315844 + 6671889 = 562^2 + 2583^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6987733 is a prime.

It is a Duffinian number.

6987733 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6987733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6987737) 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, 57216 + ... + 57337.

It is an arithmetic number, because the mean of its divisors is an integer number (1775587).

Almost surely, 2^6987733 is an apocalyptic number.

It is an amenable number.

6987733 is a deficient number, since it is larger than the sum of its proper divisors (114615).

6987733 is a wasteful number, since it uses less digits than its factorization.

6987733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114614.

The product of its digits is 190512, while the sum is 43.

The square root of 6987733 is about 2643.4320494388. The cubic root of 6987733 is about 191.1813104314.

The spelling of 6987733 in words is "six million, nine hundred eighty-seven thousand, seven hundred thirty-three".