1103979 has 12 divisors (see below), whose sum is σ = 1513448. Its totient is φ = 715680.

The previous prime is 1103933. The next prime is 1103981. The reversal of 1103979 is 9793011.

1103979 = 88² + 89² + ... + 158².

It is not a de Polignac number, because 1103979 - 2⁸ = 1103723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15087 + ... + 15159.

2^1103979 is an apocalyptic number.

1103979 is a deficient number, since it is larger than the sum of its proper divisors (409469).

1103979 is an frugal number, since it uses more digits than its factorization.

1103979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 1701, while the sum is 30.

The square root of 1103979 is about 1050.7040496734. The cubic root of 1103979 is about 103.3523297253.

The spelling of 1103979 in words is "one million, one hundred three thousand, nine hundred seventy-nine".