6988607 has 2 divisors, whose sum is σ = 6988608. Its totient is φ = 6988606.

The previous prime is 6988603. The next prime is 6988621. The reversal of 6988607 is 7068896.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6988607 - 2² = 6988603 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6988603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3494303 + 3494304.

It is an arithmetic number, because the mean of its divisors is an integer number (3494304).

Almost surely, 2^6988607 is an apocalyptic number.

6988607 is a deficient number, since it is larger than the sum of its proper divisors (1).

6988607 is an equidigital number, since it uses as much as digits as its factorization.

6988607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 6988607 is about 2643.5973596597. The cubic root of 6988607 is about 191.1892808513.

The spelling of 6988607 in words is "six million, nine hundred eighty-eight thousand, six hundred seven".