1117979 has 8 divisors (see below), whose sum is σ = 1218000. Its totient is φ = 1022112.

The previous prime is 1117973. The next prime is 1117993. The reversal of 1117979 is 9797111.

It is a happy number.

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 1117979 - 2¹² = 1113883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1117973) 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, 464 + ... + 1565.

It is an arithmetic number, because the mean of its divisors is an integer number (152250).

2^1117979 is an apocalyptic number.

1117979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1117979 is a deficient number, since it is larger than the sum of its proper divisors (100021).

1117979 is a wasteful number, since it uses less digits than its factorization.

1117979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077.

The product of its digits is 3969, while the sum is 35.

The square root of 1117979 is about 1057.3452605464. The cubic root of 1117979 is about 103.7873799599.

The spelling of 1117979 in words is "one million, one hundred seventeen thousand, nine hundred seventy-nine".