1426977493 has 2 divisors, whose sum is σ = 1426977494. Its totient is φ = 1426977492.

The previous prime is 1426977449. The next prime is 1426977611. The reversal of 1426977493 is 3947796241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1038966289 + 388011204 = 32233^2 + 19698^2 .

It is an emirp because it is prime and its reverse (3947796241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1426977493 - 2¹³ = 1426969301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1426977493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1426977443) 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 as a sum of consecutive naturals, namely, 713488746 + 713488747.

It is an arithmetic number, because the mean of its divisors is an integer number (713488747).

Almost surely, 2^1426977493 is an apocalyptic number.

It is an amenable number.

1426977493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1426977493 is an equidigital number, since it uses as much as digits as its factorization.

1426977493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 52.

The square root of 1426977493 is about 37775.3556303577. The cubic root of 1426977493 is about 1125.8288523637.

The spelling of 1426977493 in words is "one billion, four hundred twenty-six million, nine hundred seventy-seven thousand, four hundred ninety-three".