6985559 has 16 divisors (see below), whose sum is σ = 8570880. Its totient is φ = 5559840.

The previous prime is 6985553. The next prime is 6985579. The reversal of 6985559 is 9555896.

It is a cyclic number.

It is not a de Polignac number, because 6985559 - 2¹² = 6981463 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 (6985553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6554 + ... + 7544.

It is an arithmetic number, because the mean of its divisors is an integer number (535680).

Almost surely, 2^6985559 is an apocalyptic number.

6985559 is a deficient number, since it is larger than the sum of its proper divisors (1585321).

6985559 is a wasteful number, since it uses less digits than its factorization.

6985559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070.

The product of its digits is 486000, while the sum is 47.

The square root of 6985559 is about 2643.0208096040. The cubic root of 6985559 is about 191.1614818127.

It can be divided in two parts, 6985 and 559, that multiplied together give a triangular number (3904615 = T₂₇₉₄).

The spelling of 6985559 in words is "six million, nine hundred eighty-five thousand, five hundred fifty-nine".