6993137 has 4 divisors (see below), whose sum is σ = 7404516. Its totient is φ = 6581760.

The previous prime is 6993131. The next prime is 6993149. The reversal of 6993137 is 7313996.

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 5550736 + 1442401 = 2356^2 + 1201^2 .

It is a cyclic number.

It is not a de Polignac number, because 6993137 - 2¹⁸ = 6730993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6993137.

It is not an unprimeable number, because it can be changed into a prime (6993131) 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, 205664 + ... + 205697.

It is an arithmetic number, because the mean of its divisors is an integer number (1851129).

Almost surely, 2^6993137 is an apocalyptic number.

It is an amenable number.

6993137 is a deficient number, since it is larger than the sum of its proper divisors (411379).

6993137 is a wasteful number, since it uses less digits than its factorization.

6993137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411378.

The product of its digits is 30618, while the sum is 38.

The square root of 6993137 is about 2644.4540079192. The cubic root of 6993137 is about 191.2305814223.

The spelling of 6993137 in words is "six million, nine hundred ninety-three thousand, one hundred thirty-seven".