1187340473 has 16 divisors (see below), whose sum is σ = 1309556160. Its totient is φ = 1067572800.

The previous prime is 1187340409. The next prime is 1187340509. The reversal of 1187340473 is 3740437811.

It is a cyclic number.

It is not a de Polignac number, because 1187340473 - 2⁶ = 1187340409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1187340403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386363 + ... + 389423.

It is an arithmetic number, because the mean of its divisors is an integer number (81847260).

Almost surely, 2^1187340473 is an apocalyptic number.

It is an amenable number.

1187340473 is a deficient number, since it is larger than the sum of its proper divisors (122215687).

1187340473 is a wasteful number, since it uses less digits than its factorization.

1187340473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3448.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 1187340473 is about 34457.8071414883. The cubic root of 1187340473 is about 1058.9084744153.

The spelling of 1187340473 in words is "one billion, one hundred eighty-seven million, three hundred forty thousand, four hundred seventy-three".