1117564 has 24 divisors (see below), whose sum is σ = 2257920. Its totient is φ = 474096.

The previous prime is 1117553. The next prime is 1117579. The reversal of 1117564 is 4657111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4557 + ... + 4795.

It is an arithmetic number, because the mean of its divisors is an integer number (94080).

2^1117564 is an apocalyptic number.

1117564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1117564 is an abundant number, since it is smaller than the sum of its proper divisors (1140356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1117564 is a wasteful number, since it uses less digits than its factorization.

1117564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 415 counting only the distinct ones).

The product of its digits is 840, while the sum is 25.

The square root of 1117564 is about 1057.1489961212. The cubic root of 1117564 is about 103.7745362204.

It can be divided in two parts, 1117 and 564, that added together give a square (1681 = 41²).

The spelling of 1117564 in words is "one million, one hundred seventeen thousand, five hundred sixty-four".