1406764863 has 18 divisors (see below), whose sum is σ = 2363748504. Its totient is φ = 803865384.

The previous prime is 1406764837. The next prime is 1406764873. The reversal of 1406764863 is 3684676041.

It is a happy number.

It is not a de Polignac number, because 1406764863 - 2¹² = 1406760767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406764873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1594531 + ... + 1595412.

Almost surely, 2^1406764863 is an apocalyptic number.

1406764863 is a deficient number, since it is larger than the sum of its proper divisors (956983641).

1406764863 is a wasteful number, since it uses less digits than its factorization.

1406764863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3189963 (or 3189953 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 1406764863 is about 37506.8642117680. The cubic root of 1406764863 is about 1120.4878994074.

The spelling of 1406764863 in words is "one billion, four hundred six million, seven hundred sixty-four thousand, eight hundred sixty-three".