1187680904 has 16 divisors (see below), whose sum is σ = 2228891100. Its totient is φ = 593309952.

The previous prime is 1187680903. The next prime is 1187680933. The reversal of 1187680904 is 4090867811.

It can be written as a sum of positive squares in 2 ways, for example, as 1185424900 + 2256004 = 34430^2 + 1502^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1187680903) 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, 56717 + ... + 74780.

Almost surely, 2^1187680904 is an apocalyptic number.

It is an amenable number.

1187680904 is a deficient number, since it is larger than the sum of its proper divisors (1041210196).

1187680904 is a wasteful number, since it uses less digits than its factorization.

1187680904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132632 (or 132628 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 1187680904 is about 34462.7466113773. The cubic root of 1187680904 is about 1059.0096671880.

The spelling of 1187680904 in words is "one billion, one hundred eighty-seven million, six hundred eighty thousand, nine hundred four".