49443447 has 4 divisors (see below), whose sum is σ = 65924600. Its totient is φ = 32962296.

The previous prime is 49443413. The next prime is 49443451. The reversal of 49443447 is 74434494.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-49443447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49443467) 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, 8240572 + ... + 8240577.

It is an arithmetic number, because the mean of its divisors is an integer number (16481150).

Almost surely, 2^49443447 is an apocalyptic number.

49443447 is a deficient number, since it is larger than the sum of its proper divisors (16481153).

49443447 is a wasteful number, since it uses less digits than its factorization.

49443447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16481152.

The product of its digits is 193536, while the sum is 39.

The square root of 49443447 is about 7031.6034444499. The cubic root of 49443447 is about 367.0311407076.

The spelling of 49443447 in words is "forty-nine million, four hundred forty-three thousand, four hundred forty-seven".