1022986 has 8 divisors (see below), whose sum is σ = 1538820. Its totient is φ = 510048.

The previous prime is 1022981. The next prime is 1023019. The reversal of 1022986 is 6892201.

It is a happy number.

1022986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 950625 + 72361 = 975^2 + 269^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1022981) 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, 820 + ... + 1648.

2^1022986 is an apocalyptic number.

1022986 is a deficient number, since it is larger than the sum of its proper divisors (515834).

1022986 is an equidigital number, since it uses as much as digits as its factorization.

1022986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448.

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

The square root of 1022986 is about 1011.4277037930. The cubic root of 1022986 is about 100.7604032137.

The spelling of 1022986 in words is "one million, twenty-two thousand, nine hundred eighty-six".