49343939 has 2 divisors, whose sum is σ = 49343940. Its totient is φ = 49343938.

The previous prime is 49343923. The next prime is 49343963. The reversal of 49343939 is 93934394.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49343939 - 2⁴ = 49343923 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49343939.

It is not a weakly prime, because it can be changed into another prime (49343989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24671969 + 24671970.

It is an arithmetic number, because the mean of its divisors is an integer number (24671970).

Almost surely, 2^49343939 is an apocalyptic number.

49343939 is a deficient number, since it is larger than the sum of its proper divisors (1).

49343939 is an equidigital number, since it uses as much as digits as its factorization.

49343939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 314928, while the sum is 44.

The square root of 49343939 is about 7024.5241119951. The cubic root of 49343939 is about 366.7847510396.

The spelling of 49343939 in words is "forty-nine million, three hundred forty-three thousand, nine hundred thirty-nine".