1172790 has 48 divisors (see below), whose sum is σ = 3105648. Its totient is φ = 307008.

The previous prime is 1172783. The next prime is 1172797. The reversal of 1172790 is 972711.

It is an interprime number because it is at equal distance from previous prime (1172783) and next prime (1172797).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7392 + ... + 7548.

It is an arithmetic number, because the mean of its divisors is an integer number (64701).

2^1172790 is an apocalyptic number.

1172790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1172790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1552824).

1172790 is an abundant number, since it is smaller than the sum of its proper divisors (1932858).

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

1172790 is a wasteful number, since it uses less digits than its factorization.

1172790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 27.

The square root of 1172790 is about 1082.9542926643. The cubic root of 1172790 is about 105.4565157002.

The spelling of 1172790 in words is "one million, one hundred seventy-two thousand, seven hundred ninety".