722000407 has 2 divisors, whose sum is σ = 722000408. Its totient is φ = 722000406.

The previous prime is 722000359. The next prime is 722000467. The reversal of 722000407 is 704000227.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722000407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722000467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361000203 + 361000204.

It is an arithmetic number, because the mean of its divisors is an integer number (361000204).

Almost surely, 2^722000407 is an apocalyptic number.

722000407 is a deficient number, since it is larger than the sum of its proper divisors (1).

722000407 is an equidigital number, since it uses as much as digits as its factorization.

722000407 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 722000407 is about 26870.0652585735. The cubic root of 722000407 is about 897.1102404170.

The spelling of 722000407 in words is "seven hundred twenty-two million, four hundred seven", and thus it is an aban number.