1187668 has 12 divisors (see below), whose sum is σ = 2100532. Its totient is φ = 587520.

The previous prime is 1187657. The next prime is 1187687. The reversal of 1187668 is 8667811.

It can be written as a sum of positive squares in 2 ways, for example, as 887364 + 300304 = 942^2 + 548^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143 + ... + 1918.

2^1187668 is an apocalyptic number.

It is an amenable number.

1187668 is a deficient number, since it is larger than the sum of its proper divisors (912864).

1187668 is a wasteful number, since it uses less digits than its factorization.

1187668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162 (or 3160 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 1187668 is about 1089.8018168456. The cubic root of 1187668 is about 105.9005831840.

The spelling of 1187668 in words is "one million, one hundred eighty-seven thousand, six hundred sixty-eight".