6997090 has 8 divisors (see below), whose sum is σ = 12594780. Its totient is φ = 2798832.

The previous prime is 6997087. The next prime is 6997093. The reversal of 6997090 is 907996.

It is an interprime number because it is at equal distance from previous prime (6997087) and next prime (6997093).

It can be written as a sum of positive squares in 2 ways, for example, as 6869641 + 127449 = 2621^2 + 357^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6997093) 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, 349845 + ... + 349864.

Almost surely, 2^6997090 is an apocalyptic number.

6997090 is a deficient number, since it is larger than the sum of its proper divisors (5597690).

6997090 is a wasteful number, since it uses less digits than its factorization.

6997090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699716.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 6997090 is about 2645.2013155902. The cubic root of 6997090 is about 191.2666068425.

The spelling of 6997090 in words is "six million, nine hundred ninety-seven thousand, ninety".