1187679 has 8 divisors (see below), whose sum is σ = 1594800. Its totient is φ = 786176.

The previous prime is 1187657. The next prime is 1187687. The reversal of 1187679 is 9767811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1187679 - 2⁷ = 1187551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1187629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 882 + ... + 1775.

It is an arithmetic number, because the mean of its divisors is an integer number (199350).

2^1187679 is an apocalyptic number.

1187679 is a deficient number, since it is larger than the sum of its proper divisors (407121).

1187679 is a wasteful number, since it uses less digits than its factorization.

1187679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809.

The product of its digits is 21168, while the sum is 39.

The square root of 1187679 is about 1089.8068636231. The cubic root of 1187679 is about 105.9009101280.

It can be divided in two parts, 11 and 87679, that multiplied together give a palindrome (964469).

The spelling of 1187679 in words is "one million, one hundred eighty-seven thousand, six hundred seventy-nine".