6891022 has 4 divisors (see below), whose sum is σ = 10336536. Its totient is φ = 3445510.

The previous prime is 6891019. The next prime is 6891029. The reversal of 6891022 is 2201986.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6891029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1722754 + ... + 1722757.

It is an arithmetic number, because the mean of its divisors is an integer number (2584134).

Almost surely, 2^6891022 is an apocalyptic number.

6891022 is a deficient number, since it is larger than the sum of its proper divisors (3445514).

6891022 is a wasteful number, since it uses less digits than its factorization.

6891022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3445513.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 6891022 is about 2625.0756179585. The cubic root of 6891022 is about 190.2952197239.

It can be divided in two parts, 689 and 1022, that added together give a triangular number (1711 = T₅₈).

The spelling of 6891022 in words is "six million, eight hundred ninety-one thousand, twenty-two".