720002407 has 2 divisors, whose sum is σ = 720002408. Its totient is φ = 720002406.

The previous prime is 720002399. The next prime is 720002453. The reversal of 720002407 is 704200027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 720002407 - 2³ = 720002399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720002467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360001203 + 360001204.

It is an arithmetic number, because the mean of its divisors is an integer number (360001204).

Almost surely, 2^720002407 is an apocalyptic number.

720002407 is a deficient number, since it is larger than the sum of its proper divisors (1).

720002407 is an equidigital number, since it uses as much as digits as its factorization.

720002407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 720002407 is about 26832.8605817568. The cubic root of 720002407 is about 896.2819480827.

The spelling of 720002407 in words is "seven hundred twenty million, two thousand, four hundred seven".