6987822 has 16 divisors (see below), whose sum is σ = 14079312. Its totient is φ = 2312000.

The previous prime is 6987821. The next prime is 6987823. The reversal of 6987822 is 2287896.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6987821) and next prime (6987823).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6987821) 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, 3429 + ... + 5072.

It is an arithmetic number, because the mean of its divisors is an integer number (879957).

Almost surely, 2^6987822 is an apocalyptic number.

6987822 is an abundant number, since it is smaller than the sum of its proper divisors (7091490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6987822 is a wasteful number, since it uses less digits than its factorization.

6987822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8643.

The product of its digits is 96768, while the sum is 42.

The square root of 6987822 is about 2643.4488835610. The cubic root of 6987822 is about 191.1821220949.

The spelling of 6987822 in words is "six million, nine hundred eighty-seven thousand, eight hundred twenty-two".