1390980763 has 4 divisors (see below), whose sum is σ = 1410035368. Its totient is φ = 1371926160.

The previous prime is 1390980761. The next prime is 1390980781. The reversal of 1390980763 is 3670890931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1390980763 - 2¹ = 1390980761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1390980761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9527193 + ... + 9527338.

It is an arithmetic number, because the mean of its divisors is an integer number (352508842).

Almost surely, 2^1390980763 is an apocalyptic number.

1390980763 is a deficient number, since it is larger than the sum of its proper divisors (19054605).

1390980763 is an equidigital number, since it uses as much as digits as its factorization.

1390980763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19054604.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 1390980763 is about 37295.8545015394. The cubic root of 1390980763 is about 1116.2814502662.

The spelling of 1390980763 in words is "one billion, three hundred ninety million, nine hundred eighty thousand, seven hundred sixty-three".