999514421 has 2 divisors, whose sum is σ = 999514422. Its totient is φ = 999514420.

The previous prime is 999514393. The next prime is 999514447. The reversal of 999514421 is 124415999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 678029521 + 321484900 = 26039^2 + 17930^2 .

It is a cyclic number.

It is not a de Polignac number, because 999514421 - 2¹⁰ = 999513397 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 (999534421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499757210 + 499757211.

It is an arithmetic number, because the mean of its divisors is an integer number (499757211).

Almost surely, 2^999514421 is an apocalyptic number.

It is an amenable number.

999514421 is a deficient number, since it is larger than the sum of its proper divisors (1).

999514421 is an equidigital number, since it uses as much as digits as its factorization.

999514421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 44.

The square root of 999514421 is about 31615.0979913079. The cubic root of 999514421 is about 999.8381141277.

The spelling of 999514421 in words is "nine hundred ninety-nine million, five hundred fourteen thousand, four hundred twenty-one".