999950671 has 2 divisors, whose sum is σ = 999950672. Its totient is φ = 999950670.

The previous prime is 999950657. The next prime is 999950683. The reversal of 999950671 is 176059999.

It is a strong prime.

It is an emirp because it is prime and its reverse (176059999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999950671 - 2⁷ = 999950543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999950621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499975335 + 499975336.

It is an arithmetic number, because the mean of its divisors is an integer number (499975336).

Almost surely, 2^999950671 is an apocalyptic number.

999950671 is a deficient number, since it is larger than the sum of its proper divisors (1).

999950671 is an equidigital number, since it uses as much as digits as its factorization.

999950671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1377810, while the sum is 55.

The square root of 999950671 is about 31621.9966320914. The cubic root of 999950671 is about 999.9835567296.

The spelling of 999950671 in words is "nine hundred ninety-nine million, nine hundred fifty thousand, six hundred seventy-one".