49390637 has 4 divisors (see below), whose sum is σ = 51538080. Its totient is φ = 47243196.

The previous prime is 49390631. The next prime is 49390667. The reversal of 49390637 is 73609394.

49390637 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73609394 = 2 ⋅36804697.

It is not a de Polignac number, because 49390637 - 2⁸ = 49390381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49390594 and 49390603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49390631) 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, 1073687 + ... + 1073732.

It is an arithmetic number, because the mean of its divisors is an integer number (12884520).

Almost surely, 2^49390637 is an apocalyptic number.

It is an amenable number.

49390637 is a deficient number, since it is larger than the sum of its proper divisors (2147443).

49390637 is a wasteful number, since it uses less digits than its factorization.

49390637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147442.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 49390637 is about 7027.8472521819. The cubic root of 49390637 is about 366.9004201861.

The spelling of 49390637 in words is "forty-nine million, three hundred ninety thousand, six hundred thirty-seven".