1200879 has 16 divisors (see below), whose sum is σ = 1804800. Its totient is φ = 789048.

The previous prime is 1200869. The next prime is 1200883. The reversal of 1200879 is 9780021.

It is not a de Polignac number, because 1200879 - 2⁷ = 1200751 is a prime.

It is a super-2 number, since 2×1200879² = 2884220745282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1852 + ... + 2414.

It is an arithmetic number, because the mean of its divisors is an integer number (112800).

2^1200879 is an apocalyptic number.

1200879 is a deficient number, since it is larger than the sum of its proper divisors (603921).

1200879 is an equidigital number, since it uses as much as digits as its factorization.

1200879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1200879 is about 1095.8462483396. The cubic root of 1200879 is about 106.2917971656.

The spelling of 1200879 in words is "one million, two hundred thousand, eight hundred seventy-nine".