49963729 has 4 divisors (see below), whose sum is σ = 49982320. Its totient is φ = 49945140.

The previous prime is 49963703. The next prime is 49963769. The reversal of 49963729 is 92736994.

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 49963729 - 2⁷ = 49963601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49963769) 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, 4407 + ... + 10924.

It is an arithmetic number, because the mean of its divisors is an integer number (12495580).

Almost surely, 2^49963729 is an apocalyptic number.

It is an amenable number.

49963729 is a deficient number, since it is larger than the sum of its proper divisors (18591).

49963729 is a wasteful number, since it uses less digits than its factorization.

49963729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18590.

The product of its digits is 734832, while the sum is 49.

The square root of 49963729 is about 7068.5025995610. The cubic root of 49963729 is about 368.3140459770.

The spelling of 49963729 in words is "forty-nine million, nine hundred sixty-three thousand, seven hundred twenty-nine".