1195779983 has 8 divisors (see below), whose sum is σ = 1270506240. Its totient is φ = 1125435360.

The previous prime is 1195779973. The next prime is 1195780007. The reversal of 1195779983 is 3899775911.

It is not a de Polignac number, because 1195779983 - 2⁶ = 1195779919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1195779973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116783 + ... + 126608.

It is an arithmetic number, because the mean of its divisors is an integer number (158813280).

Almost surely, 2^1195779983 is an apocalyptic number.

1195779983 is a deficient number, since it is larger than the sum of its proper divisors (74726257).

1195779983 is an frugal number, since it uses more digits than its factorization.

1195779983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243442 (or 243408 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 59.

The square root of 1195779983 is about 34580.0518073643. The cubic root of 1195779983 is about 1061.4114290994.

The spelling of 1195779983 in words is "one billion, one hundred ninety-five million, seven hundred seventy-nine thousand, nine hundred eighty-three".