1167720 has 64 divisors (see below), whose sum is σ = 3611520. Its totient is φ = 301824.

The previous prime is 1167709. The next prime is 1167731. The reversal of 1167720 is 277611.

It is an interprime number because it is at equal distance from previous prime (1167709) and next prime (1167731).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4309 + ... + 4571.

It is an arithmetic number, because the mean of its divisors is an integer number (56430).

2^1167720 is an apocalyptic number.

1167720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1167720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1805760).

1167720 is an abundant number, since it is smaller than the sum of its proper divisors (2443800).

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

1167720 is a wasteful number, since it uses less digits than its factorization.

1167720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 1167720 is about 1080.6109383122. The cubic root of 1167720 is about 105.3043324886.

The spelling of 1167720 in words is "one million, one hundred sixty-seven thousand, seven hundred twenty".