6997503 has 4 divisors (see below), whose sum is σ = 9330008. Its totient is φ = 4665000.

The previous prime is 6997499. The next prime is 6997513. The reversal of 6997503 is 3057996.

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

It is not a de Polignac number, because 6997503 - 2² = 6997499 is a prime.

It is a d-powerful number, because it can be written as 6⁸ + 9 + 9⁶ + 7³ + 5⁵ + 0 + 3¹⁴ .

It is a D-number.

It is a Duffinian number.

6997503 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6997513) 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, 1166248 + ... + 1166253.

It is an arithmetic number, because the mean of its divisors is an integer number (2332502).

Almost surely, 2^6997503 is an apocalyptic number.

6997503 is a deficient number, since it is larger than the sum of its proper divisors (2332505).

6997503 is a wasteful number, since it uses less digits than its factorization.

6997503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332504.

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 6997503 is about 2645.2793803302. The cubic root of 6997503 is about 191.2703699095.

The spelling of 6997503 in words is "six million, nine hundred ninety-seven thousand, five hundred three".