999672449 has 2 divisors, whose sum is σ = 999672450. Its totient is φ = 999672448.

The previous prime is 999672433. The next prime is 999672461. The reversal of 999672449 is 944276999.

999672449 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., 711182224 + 288490225 = 26668^2 + 16985^2 .

It is an emirp because it is prime and its reverse (944276999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999672449 - 2⁴ = 999672433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (999672049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499836224 + 499836225.

It is an arithmetic number, because the mean of its divisors is an integer number (499836225).

Almost surely, 2^999672449 is an apocalyptic number.

It is an amenable number.

999672449 is a deficient number, since it is larger than the sum of its proper divisors (1).

999672449 is an equidigital number, since it uses as much as digits as its factorization.

999672449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8817984, while the sum is 59.

The square root of 999672449 is about 31617.5971414654. The cubic root of 999672449 is about 999.8908044101.

The spelling of 999672449 in words is "nine hundred ninety-nine million, six hundred seventy-two thousand, four hundred forty-nine".