1406764979 has 2 divisors, whose sum is σ = 1406764980. Its totient is φ = 1406764978.

The previous prime is 1406764967. The next prime is 1406765021. The reversal of 1406764979 is 9794676041.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9794676041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1406764979 - 2⁴ = 1406764963 is a prime.

It is a super-2 number, since 2×1406764979² = 3957975412281740882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1406764979.

It is not a weakly prime, because it can be changed into another prime (1406766979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703382489 + 703382490.

It is an arithmetic number, because the mean of its divisors is an integer number (703382490).

Almost surely, 2^1406764979 is an apocalyptic number.

1406764979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406764979 is an equidigital number, since it uses as much as digits as its factorization.

1406764979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The square root of 1406764979 is about 37506.8657581515. The cubic root of 1406764979 is about 1120.4879302054.

The spelling of 1406764979 in words is "one billion, four hundred six million, seven hundred sixty-four thousand, nine hundred seventy-nine".