748821447 has 18 divisors (see below), whose sum is σ = 1188901896. Its totient is φ = 453830520.

The previous prime is 748821443. The next prime is 748821467. The reversal of 748821447 is 744128847.

748821447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 748821447 - 2² = 748821443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748821443) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 342723 + ... + 344900.

Almost surely, 2^748821447 is an apocalyptic number.

748821447 is a deficient number, since it is larger than the sum of its proper divisors (440080449).

748821447 is a wasteful number, since it uses less digits than its factorization.

748821447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687651 (or 687637 counting only the distinct ones).

The product of its digits is 401408, while the sum is 45.

The square root of 748821447 is about 27364.6020800596. The cubic root of 748821447 is about 908.0841418238.

The spelling of 748821447 in words is "seven hundred forty-eight million, eight hundred twenty-one thousand, four hundred forty-seven".