47448477 has 8 divisors (see below), whose sum is σ = 70294080. Its totient is φ = 31632300.

The previous prime is 47448473. The next prime is 47448497. The reversal of 47448477 is 77484474.

It is not a de Polignac number, because 47448477 - 2² = 47448473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47448473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 878649 + ... + 878702.

It is an arithmetic number, because the mean of its divisors is an integer number (8786760).

Almost surely, 2^47448477 is an apocalyptic number.

It is an amenable number.

47448477 is a deficient number, since it is larger than the sum of its proper divisors (22845603).

47448477 is a wasteful number, since it uses less digits than its factorization.

47448477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757360 (or 1757354 counting only the distinct ones).

The product of its digits is 702464, while the sum is 45.

The square root of 47448477 is about 6888.2854905992. The cubic root of 47448477 is about 362.0268312377.

The spelling of 47448477 in words is "forty-seven million, four hundred forty-eight thousand, four hundred seventy-seven".