6990613 has 8 divisors (see below), whose sum is σ = 8409920. Its totient is φ = 5676480.

The previous prime is 6990611. The next prime is 6990617. The reversal of 6990613 is 3160996.

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

It is a cyclic number.

It is not a de Polignac number, because 6990613 - 2¹ = 6990611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6990611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26148 + ... + 26413.

It is an arithmetic number, because the mean of its divisors is an integer number (1051240).

Almost surely, 2^6990613 is an apocalyptic number.

It is an amenable number.

6990613 is a deficient number, since it is larger than the sum of its proper divisors (1419307).

6990613 is a wasteful number, since it uses less digits than its factorization.

6990613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52587.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 6990613 is about 2643.9767396859. The cubic root of 6990613 is about 191.2075720028.

The spelling of 6990613 in words is "six million, nine hundred ninety thousand, six hundred thirteen".