49047639 has 8 divisors (see below), whose sum is σ = 65456112. Its totient is φ = 32668800.

The previous prime is 49047637. The next prime is 49047643. The reversal of 49047639 is 93674094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49047639 - 2¹ = 49047637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49047639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49047637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3204 + ... + 10409.

It is an arithmetic number, because the mean of its divisors is an integer number (8182014).

Almost surely, 2^49047639 is an apocalyptic number.

49047639 is a deficient number, since it is larger than the sum of its proper divisors (16408473).

49047639 is a wasteful number, since it uses less digits than its factorization.

49047639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14817.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 49047639 is about 7003.4019590482. The cubic root of 49047639 is about 366.0491214789.

The spelling of 49047639 in words is "forty-nine million, forty-seven thousand, six hundred thirty-nine".