2949621929 has 4 divisors (see below), whose sum is σ = 3051333060. Its totient is φ = 2847910800.

The previous prime is 2949621893. The next prime is 2949621949. The reversal of 2949621929 is 9291269492.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2442336400 + 507285529 = 49420^2 + 22523^2 .

It is a cyclic number.

It is not a de Polignac number, because 2949621929 - 2¹² = 2949617833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2949621949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50855522 + ... + 50855579.

It is an arithmetic number, because the mean of its divisors is an integer number (762833265).

Almost surely, 2^2949621929 is an apocalyptic number.

2949621929 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2949621929 is a deficient number, since it is larger than the sum of its proper divisors (101711131).

2949621929 is a wasteful number, since it uses less digits than its factorization.

2949621929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101711130.

The product of its digits is 1259712, while the sum is 53.

The square root of 2949621929 is about 54310.4219188178. The cubic root of 2949621929 is about 1434.1308708733.

The spelling of 2949621929 in words is "two billion, nine hundred forty-nine million, six hundred twenty-one thousand, nine hundred twenty-nine".