1406306393 has 2 divisors, whose sum is σ = 1406306394. Its totient is φ = 1406306392.

The previous prime is 1406306389. The next prime is 1406306417. The reversal of 1406306393 is 3936036041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1241646169 + 164660224 = 35237^2 + 12832^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406306393 - 2² = 1406306389 is a prime.

It is not a weakly prime, because it can be changed into another prime (1406306303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703153196 + 703153197.

It is an arithmetic number, because the mean of its divisors is an integer number (703153197).

Almost surely, 2^1406306393 is an apocalyptic number.

It is an amenable number.

1406306393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406306393 is an equidigital number, since it uses as much as digits as its factorization.

1406306393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 1406306393 is about 37500.7518991286. The cubic root of 1406306393 is about 1120.3661624307.

The spelling of 1406306393 in words is "one billion, four hundred six million, three hundred six thousand, three hundred ninety-three".