1172671378 has 8 divisors (see below), whose sum is σ = 1759228272. Its totient is φ = 586261956.

The previous prime is 1172671363. The next prime is 1172671411. The reversal of 1172671378 is 8731762711.

It is a happy number.

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

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, 14200 + ... + 50467.

It is an arithmetic number, because the mean of its divisors is an integer number (219903534).

Almost surely, 2^1172671378 is an apocalyptic number.

1172671378 is a deficient number, since it is larger than the sum of its proper divisors (586556894).

1172671378 is an equidigital number, since it uses as much as digits as its factorization.

1172671378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73736.

The product of its digits is 98784, while the sum is 43.

The square root of 1172671378 is about 34244.2897137610. The cubic root of 1172671378 is about 1054.5296010926.

The spelling of 1172671378 in words is "one billion, one hundred seventy-two million, six hundred seventy-one thousand, three hundred seventy-eight".