738779449 has 2 divisors, whose sum is σ = 738779450. Its totient is φ = 738779448.

The previous prime is 738779339. The next prime is 738779471. The reversal of 738779449 is 944977837.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 693795600 + 44983849 = 26340^2 + 6707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-738779449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 738779393 and 738779402.

It is not a weakly prime, because it can be changed into another prime (738779749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369389724 + 369389725.

It is an arithmetic number, because the mean of its divisors is an integer number (369389725).

Almost surely, 2^738779449 is an apocalyptic number.

It is an amenable number.

738779449 is a deficient number, since it is larger than the sum of its proper divisors (1).

738779449 is an equidigital number, since it uses as much as digits as its factorization.

738779449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10668672, while the sum is 58.

The square root of 738779449 is about 27180.4975855851. The cubic root of 738779449 is about 904.0066016336.

The spelling of 738779449 in words is "seven hundred thirty-eight million, seven hundred seventy-nine thousand, four hundred forty-nine".