6940989 has 12 divisors (see below), whose sum is σ = 10937472. Its totient is φ = 4206600.

The previous prime is 6940987. The next prime is 6940991. The reversal of 6940989 is 9890496.

It is an interprime number because it is at equal distance from previous prime (6940987) and next prime (6940991).

It is not a de Polignac number, because 6940989 - 2¹ = 6940987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6940987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34957 + ... + 35154.

It is an arithmetic number, because the mean of its divisors is an integer number (911456).

Almost surely, 2^6940989 is an apocalyptic number.

It is an amenable number.

6940989 is a deficient number, since it is larger than the sum of its proper divisors (3996483).

6940989 is a wasteful number, since it uses less digits than its factorization.

6940989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70128 (or 70125 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 6940989 is about 2634.5756774099. The cubic root of 6940989 is about 190.7540578705.

The spelling of 6940989 in words is "six million, nine hundred forty thousand, nine hundred eighty-nine".