1022079 has 4 divisors (see below), whose sum is σ = 1362776. Its totient is φ = 681384.

The previous prime is 1022071. The next prime is 1022083. The reversal of 1022079 is 9702201.

It is a happy number.

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

It is not a de Polignac number, because 1022079 - 2³ = 1022071 is a prime.

It is a D-number.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022071) 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, 170344 + ... + 170349.

It is an arithmetic number, because the mean of its divisors is an integer number (340694).

2^1022079 is an apocalyptic number.

1022079 is a deficient number, since it is larger than the sum of its proper divisors (340697).

1022079 is an equidigital number, since it uses as much as digits as its factorization.

1022079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340696.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 1022079 is about 1010.9792282733. The cubic root of 1022079 is about 100.7306156740.

The spelling of 1022079 in words is "one million, twenty-two thousand, seventy-nine".