49088639 has 4 divisors (see below), whose sum is σ = 51976224. Its totient is φ = 46201056.

The previous prime is 49088629. The next prime is 49088651. The reversal of 49088639 is 93688094.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49088639 - 2⁴ = 49088623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49088593 and 49088602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49088629) 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, 1443767 + ... + 1443800.

It is an arithmetic number, because the mean of its divisors is an integer number (12994056).

Almost surely, 2^49088639 is an apocalyptic number.

49088639 is a deficient number, since it is larger than the sum of its proper divisors (2887585).

49088639 is a wasteful number, since it uses less digits than its factorization.

49088639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887584.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 49088639 is about 7006.3284964381. The cubic root of 49088639 is about 366.1510892419.

The spelling of 49088639 in words is "forty-nine million, eighty-eight thousand, six hundred thirty-nine".