1478606813 has 2 divisors, whose sum is σ = 1478606814. Its totient is φ = 1478606812.

The previous prime is 1478606803. The next prime is 1478606849. The reversal of 1478606813 is 3186068741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1133130244 + 345476569 = 33662^2 + 18587^2 .

It is a cyclic number.

It is not a de Polignac number, because 1478606813 - 2¹⁰ = 1478605789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1478606803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 739303406 + 739303407.

It is an arithmetic number, because the mean of its divisors is an integer number (739303407).

Almost surely, 2^1478606813 is an apocalyptic number.

It is an amenable number.

1478606813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1478606813 is an equidigital number, since it uses as much as digits as its factorization.

1478606813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 1478606813 is about 38452.6567742724. The cubic root of 1478606813 is about 1139.2461449295.

The spelling of 1478606813 in words is "one billion, four hundred seventy-eight million, six hundred six thousand, eight hundred thirteen".