999354949 has 4 divisors (see below), whose sum is σ = 1000686400. Its totient is φ = 998023500.

The previous prime is 999354931. The next prime is 999354971. The reversal of 999354949 is 949453999.

999354949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 999354949 - 2⁹ = 999354437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999354929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664599 + ... + 666100.

It is an arithmetic number, because the mean of its divisors is an integer number (250171600).

Almost surely, 2^999354949 is an apocalyptic number.

It is an amenable number.

999354949 is a deficient number, since it is larger than the sum of its proper divisors (1331451).

999354949 is a wasteful number, since it uses less digits than its factorization.

999354949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331450.

The product of its digits is 14171760, while the sum is 61.

The square root of 999354949 is about 31612.5758045750. The cubic root of 999354949 is about 999.7849367511.

The spelling of 999354949 in words is "nine hundred ninety-nine million, three hundred fifty-four thousand, nine hundred forty-nine".