720701099 has 2 divisors, whose sum is σ = 720701100. Its totient is φ = 720701098.

The previous prime is 720701063. The next prime is 720701119. The reversal of 720701099 is 990107027.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720701099 is a prime.

It is a Sophie Germain prime.

It is equal to p_37268603 and since 720701099 and 37268603 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (720701029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360350549 + 360350550.

It is an arithmetic number, because the mean of its divisors is an integer number (360350550).

Almost surely, 2^720701099 is an apocalyptic number.

720701099 is a deficient number, since it is larger than the sum of its proper divisors (1).

720701099 is an equidigital number, since it uses as much as digits as its factorization.

720701099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 720701099 is about 26845.8767597559. The cubic root of 720701099 is about 896.5717723788.

The spelling of 720701099 in words is "seven hundred twenty million, seven hundred one thousand, ninety-nine".