49638077 has 4 divisors (see below), whose sum is σ = 50029056. Its totient is φ = 49247100.

The previous prime is 49638073. The next prime is 49638091. The reversal of 49638077 is 77083694.

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: 77083694 = 2 ⋅38541847.

It is a cyclic number.

It is not a de Polignac number, because 49638077 - 2² = 49638073 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49638073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195299 + ... + 195552.

It is an arithmetic number, because the mean of its divisors is an integer number (12507264).

Almost surely, 2^49638077 is an apocalyptic number.

It is an amenable number.

49638077 is a deficient number, since it is larger than the sum of its proper divisors (390979).

49638077 is a wasteful number, since it uses less digits than its factorization.

49638077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390978.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 49638077 is about 7045.4295113925. The cubic root of 49638077 is about 367.5121059766.

The spelling of 49638077 in words is "forty-nine million, six hundred thirty-eight thousand, seventy-seven".