2999949 has 4 divisors (see below), whose sum is σ = 3999936. Its totient is φ = 1999964.

The previous prime is 2999933. The next prime is 2999951. The reversal of 2999949 is 9499992.

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 2999949 - 2⁴ = 2999933 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2999999) 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, 499989 + ... + 499994.

It is an arithmetic number, because the mean of its divisors is an integer number (999984).

2^2999949 is an apocalyptic number.

It is an amenable number.

2999949 is a deficient number, since it is larger than the sum of its proper divisors (999987).

2999949 is an equidigital number, since it uses as much as digits as its factorization.

2999949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999986.

The product of its digits is 472392, while the sum is 51.

The square root of 2999949 is about 1732.0360850744. The cubic root of 2999949 is about 144.2241397514.

It can be divided in two parts, 299994 and 9, that added together give a palindrome (300003).

The spelling of 2999949 in words is "two million, nine hundred ninety-nine thousand, nine hundred forty-nine".