49947447 has 32 divisors (see below), whose sum is σ = 78577920. Its totient is φ = 27889920.

The previous prime is 49947433. The next prime is 49947451. The reversal of 49947447 is 74474994.

It is not a de Polignac number, because 49947447 - 2⁶ = 49947383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49947396 and 49947405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49947407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22123 + ... + 24275.

It is an arithmetic number, because the mean of its divisors is an integer number (2455560).

Almost surely, 2^49947447 is an apocalyptic number.

49947447 is a deficient number, since it is larger than the sum of its proper divisors (28630473).

49947447 is a wasteful number, since it uses less digits than its factorization.

49947447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223.

The product of its digits is 1016064, while the sum is 48.

The square root of 49947447 is about 7067.3507766348. The cubic root of 49947447 is about 368.2740333455.

The spelling of 49947447 in words is "forty-nine million, nine hundred forty-seven thousand, four hundred forty-seven".