947444749 has 4 divisors (see below), whose sum is σ = 947657664. Its totient is φ = 947231836.

The previous prime is 947444737. The next prime is 947444759.

947444749 is nontrivially palindromic in base 10.

947444749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 947444749 - 2⁷ = 947444621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 947444696 and 947444705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947444759) 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, 99637 + ... + 108730.

It is an arithmetic number, because the mean of its divisors is an integer number (236914416).

Almost surely, 2^947444749 is an apocalyptic number.

It is an amenable number.

947444749 is a deficient number, since it is larger than the sum of its proper divisors (212915).

947444749 is a wasteful number, since it uses less digits than its factorization.

947444749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212914.

The product of its digits is 4064256, while the sum is 52.

The square root of 947444749 is about 30780.5904589239. The cubic root of 947444749 is about 982.1654009788.

The spelling of 947444749 in words is "nine hundred forty-seven million, four hundred forty-four thousand, seven hundred forty-nine".