6997742 has 4 divisors (see below), whose sum is σ = 10496616. Its totient is φ = 3498870.

The previous prime is 6997733. The next prime is 6997747. The reversal of 6997742 is 2477996.

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

It is a junction number, because it is equal to n+sod(n) for n = 6997693 and 6997702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6997747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1749434 + ... + 1749437.

It is an arithmetic number, because the mean of its divisors is an integer number (2624154).

Almost surely, 2^6997742 is an apocalyptic number.

6997742 is a deficient number, since it is larger than the sum of its proper divisors (3498874).

6997742 is a wasteful number, since it uses less digits than its factorization.

6997742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3498873.

The product of its digits is 190512, while the sum is 44.

The square root of 6997742 is about 2645.3245547569. The cubic root of 6997742 is about 191.2725475004.

The spelling of 6997742 in words is "six million, nine hundred ninety-seven thousand, seven hundred forty-two".