1172628 has 18 divisors (see below), whose sum is σ = 2964234. Its totient is φ = 390864.

The previous prime is 1172579. The next prime is 1172657. The reversal of 1172628 is 8262711.

It can be written as a sum of positive squares in only one way, i.e., 636804 + 535824 = 798^2 + 732^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16251 + ... + 16322.

2^1172628 is an apocalyptic number.

1172628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1172628 is an abundant number, since it is smaller than the sum of its proper divisors (1791606).

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

1172628 is a wasteful number, since it uses less digits than its factorization.

1172628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32583 (or 32578 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 1172628 is about 1082.8794946807. The cubic root of 1172628 is about 105.4516598317.

The spelling of 1172628 in words is "one million, one hundred seventy-two thousand, six hundred twenty-eight".