6900989 has 4 divisors (see below), whose sum is σ = 7201056. Its totient is φ = 6600924.

The previous prime is 6900977. The next prime is 6901007. The reversal of 6900989 is 9890096.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6900989 - 2⁴ = 6900973 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 (6900919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149999 + ... + 150044.

It is an arithmetic number, because the mean of its divisors is an integer number (1800264).

Almost surely, 2^6900989 is an apocalyptic number.

It is an amenable number.

6900989 is a deficient number, since it is larger than the sum of its proper divisors (300067).

6900989 is a wasteful number, since it uses less digits than its factorization.

6900989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300066.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 6900989 is about 2626.9733535002. The cubic root of 6900989 is about 190.3869215913.

The spelling of 6900989 in words is "six million, nine hundred thousand, nine hundred eighty-nine".