49947929 has 4 divisors (see below), whose sum is σ = 50283300. Its totient is φ = 49612560.

The previous prime is 49947923. The next prime is 49947943. The reversal of 49947929 is 92974994.

It is a happy number.

49947929 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.

It can be written as a sum of positive squares in 2 ways, for example, as 7398400 + 42549529 = 2720^2 + 6523^2 .

It is a cyclic number.

It is not a de Polignac number, because 49947929 - 2⁸ = 49947673 is a prime.

It is a super-2 number, since 2×49947929² = 4989591222778082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49947923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167462 + ... + 167759.

It is an arithmetic number, because the mean of its divisors is an integer number (12570825).

Almost surely, 2^49947929 is an apocalyptic number.

It is an amenable number.

49947929 is a deficient number, since it is larger than the sum of its proper divisors (335371).

49947929 is a wasteful number, since it uses less digits than its factorization.

49947929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335370.

The product of its digits is 1469664, while the sum is 53.

The square root of 49947929 is about 7067.3848770249. The cubic root of 49947929 is about 368.2752179740.

The spelling of 49947929 in words is "forty-nine million, nine hundred forty-seven thousand, nine hundred twenty-nine".