49989747 has 8 divisors (see below), whose sum is σ = 66686400. Its totient is φ = 33309800.

The previous prime is 49989739. The next prime is 49989749. The reversal of 49989747 is 74798994.

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

It is a cyclic number.

It is not a de Polignac number, because 49989747 - 2³ = 49989739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49989749) 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, 7372 + ... + 12422.

It is an arithmetic number, because the mean of its divisors is an integer number (8335800).

Almost surely, 2^49989747 is an apocalyptic number.

49989747 is a deficient number, since it is larger than the sum of its proper divisors (16696653).

49989747 is a wasteful number, since it uses less digits than its factorization.

49989747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8353.

The product of its digits is 4572288, while the sum is 57.

The square root of 49989747 is about 7070.3427781120. The cubic root of 49989747 is about 368.3779665593.

The spelling of 49989747 in words is "forty-nine million, nine hundred eighty-nine thousand, seven hundred forty-seven".