1212879 has 8 divisors (see below), whose sum is σ = 1636992. Its totient is φ = 798680.

The previous prime is 1212877. The next prime is 1212889. The reversal of 1212879 is 9782121.

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

It is a cyclic number.

It is not a de Polignac number, because 1212879 - 2¹ = 1212877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212877) 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, 2187 + ... + 2684.

It is an arithmetic number, because the mean of its divisors is an integer number (204624).

2^1212879 is an apocalyptic number.

1212879 is a deficient number, since it is larger than the sum of its proper divisors (424113).

1212879 is an equidigital number, since it uses as much as digits as its factorization.

1212879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4957.

The product of its digits is 2016, while the sum is 30.

The square root of 1212879 is about 1101.3078588660. The cubic root of 1212879 is about 106.6446710288.

The spelling of 1212879 in words is "one million, two hundred twelve thousand, eight hundred seventy-nine".