1187974 has 4 divisors (see below), whose sum is σ = 1781964. Its totient is φ = 593986.

The previous prime is 1187947. The next prime is 1187981. The reversal of 1187974 is 4797811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4797811 = 43 ⋅111577.

It is a super-2 number, since 2×1187974² = 2822564449352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 296992 + ... + 296995.

It is an arithmetic number, because the mean of its divisors is an integer number (445491).

2^1187974 is an apocalyptic number.

1187974 is a deficient number, since it is larger than the sum of its proper divisors (593990).

1187974 is an equidigital number, since it uses as much as digits as its factorization.

1187974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593989.

The product of its digits is 14112, while the sum is 37.

The square root of 1187974 is about 1089.9422003024. The cubic root of 1187974 is about 105.9096774190.

The spelling of 1187974 in words is "one million, one hundred eighty-seven thousand, nine hundred seventy-four".