6426988 has 24 divisors (see below), whose sum is σ = 11586960. Its totient is φ = 3118080.

The previous prime is 6426983. The next prime is 6426989. The reversal of 6426988 is 8896246.

It is a happy number.

It is a super-5 number, since 5×6426988⁵ (a number of 35 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (6426983) 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, 26548 + ... + 26788.

It is an arithmetic number, because the mean of its divisors is an integer number (482790).

Almost surely, 2^6426988 is an apocalyptic number.

It is an amenable number.

6426988 is a deficient number, since it is larger than the sum of its proper divisors (5159972).

6426988 is a wasteful number, since it uses less digits than its factorization.

6426988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 415 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 6426988 is about 2535.1504886298. The cubic root of 6426988 is about 185.9241607030.

The spelling of 6426988 in words is "six million, four hundred twenty-six thousand, nine hundred eighty-eight".