49643937 has 12 divisors (see below), whose sum is σ = 81952000. Its totient is φ = 28367928.

The previous prime is 49643929. The next prime is 49643939. The reversal of 49643937 is 73934694.

It is not a de Polignac number, because 49643937 - 2³ = 49643929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49643892 and 49643901.

It is not an unprimeable number, because it can be changed into a prime (49643939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 393937 + ... + 394062.

Almost surely, 2^49643937 is an apocalyptic number.

It is an amenable number.

49643937 is a deficient number, since it is larger than the sum of its proper divisors (32308063).

49643937 is a wasteful number, since it uses less digits than its factorization.

49643937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788012 (or 788009 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The square root of 49643937 is about 7045.8453715647. The cubic root of 49643937 is about 367.5265675642.

The spelling of 49643937 in words is "forty-nine million, six hundred forty-three thousand, nine hundred thirty-seven".