999022667 has 2 divisors, whose sum is σ = 999022668. Its totient is φ = 999022666.

The previous prime is 999022639. The next prime is 999022723. The reversal of 999022667 is 766220999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999022667 - 2²² = 994828363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (999022627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499511333 + 499511334.

It is an arithmetic number, because the mean of its divisors is an integer number (499511334).

Almost surely, 2^999022667 is an apocalyptic number.

999022667 is a deficient number, since it is larger than the sum of its proper divisors (1).

999022667 is an equidigital number, since it uses as much as digits as its factorization.

999022667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 999022667 is about 31607.3198325957. The cubic root of 999022667 is about 999.6741161446.

The spelling of 999022667 in words is "nine hundred ninety-nine million, twenty-two thousand, six hundred sixty-seven".