39764449 has 2 divisors, whose sum is σ = 39764450. Its totient is φ = 39764448.

The previous prime is 39764429. The next prime is 39764467. The reversal of 39764449 is 94446793.

39764449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29778849 + 9985600 = 5457^2 + 3160^2 .

It is a cyclic number.

It is not a de Polignac number, because 39764449 - 2¹³ = 39756257 is a prime.

It is a super-2 number, since 2×39764449² = 3162422808547202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39764399 and 39764408.

It is not a weakly prime, because it can be changed into another prime (39764419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19882224 + 19882225.

It is an arithmetic number, because the mean of its divisors is an integer number (19882225).

Almost surely, 2^39764449 is an apocalyptic number.

It is an amenable number.

39764449 is a deficient number, since it is larger than the sum of its proper divisors (1).

39764449 is an equidigital number, since it uses as much as digits as its factorization.

39764449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 46.

The square root of 39764449 is about 6305.9058825834. The cubic root of 39764449 is about 341.3225563673.

It can be divided in two parts, 397 and 64449, that added together give a palindrome (64846).

The spelling of 39764449 in words is "thirty-nine million, seven hundred sixty-four thousand, four hundred forty-nine".