999930739 has 2 divisors, whose sum is σ = 999930740. Its totient is φ = 999930738.

The previous prime is 999930731. The next prime is 999930751. The reversal of 999930739 is 937039999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999930739 - 2³ = 999930731 is a prime.

It is a super-2 number, since 2×999930739² = 1999722965594172242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (999930731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499965369 + 499965370.

It is an arithmetic number, because the mean of its divisors is an integer number (499965370).

Almost surely, 2^999930739 is an apocalyptic number.

999930739 is a deficient number, since it is larger than the sum of its proper divisors (1).

999930739 is an equidigital number, since it uses as much as digits as its factorization.

999930739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3720087, while the sum is 58.

The square root of 999930739 is about 31621.6814701559. The cubic root of 999930739 is about 999.9769124670.

The spelling of 999930739 in words is "nine hundred ninety-nine million, nine hundred thirty thousand, seven hundred thirty-nine".