1173487 has 4 divisors (see below), whose sum is σ = 1341136. Its totient is φ = 1005840.

The previous prime is 1173481. The next prime is 1173511. The reversal of 1173487 is 7843711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7843711 = 97 ⋅80863.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1173487 is a prime.

It is a Duffinian number.

1173487 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1173481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83814 + ... + 83827.

It is an arithmetic number, because the mean of its divisors is an integer number (335284).

2^1173487 is an apocalyptic number.

1173487 is a deficient number, since it is larger than the sum of its proper divisors (167649).

1173487 is an equidigital number, since it uses as much as digits as its factorization.

1173487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167648.

The product of its digits is 4704, while the sum is 31.

The square root of 1173487 is about 1083.2760497676. The cubic root of 1173487 is about 105.4774028255.

The spelling of 1173487 in words is "one million, one hundred seventy-three thousand, four hundred eighty-seven".