999672461 has 2 divisors, whose sum is σ = 999672462. Its totient is φ = 999672460.

The previous prime is 999672449. The next prime is 999672473. The reversal of 999672461 is 164276999.

It is a balanced prime because it is at equal distance from previous prime (999672449) and next prime (999672473).

It can be written as a sum of positive squares in only one way, i.e., 514836100 + 484836361 = 22690^2 + 22019^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999672461 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999672481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499836230 + 499836231.

It is an arithmetic number, because the mean of its divisors is an integer number (499836231).

Almost surely, 2^999672461 is an apocalyptic number.

It is an amenable number.

999672461 is a deficient number, since it is larger than the sum of its proper divisors (1).

999672461 is an equidigital number, since it uses as much as digits as its factorization.

999672461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 53.

The square root of 999672461 is about 31617.5973312331. The cubic root of 999672461 is about 999.8908084110.

The spelling of 999672461 in words is "nine hundred ninety-nine million, six hundred seventy-two thousand, four hundred sixty-one".