47469749 has 4 divisors (see below), whose sum is σ = 47492940. Its totient is φ = 47446560.

The previous prime is 47469739. The next prime is 47469823. The reversal of 47469749 is 94796474.

47469749 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.

It can be written as a sum of positive squares in 2 ways, for example, as 15547249 + 31922500 = 3943^2 + 5650^2 .

It is a cyclic number.

It is not a de Polignac number, because 47469749 - 2¹⁶ = 47404213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47469697 and 47469706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47469739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8192 + ... + 12729.

It is an arithmetic number, because the mean of its divisors is an integer number (11873235).

Almost surely, 2^47469749 is an apocalyptic number.

It is an amenable number.

47469749 is a deficient number, since it is larger than the sum of its proper divisors (23191).

47469749 is a wasteful number, since it uses less digits than its factorization.

47469749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23190.

The product of its digits is 1524096, while the sum is 50.

The square root of 47469749 is about 6889.8293883085. The cubic root of 47469749 is about 362.0809241872.

The spelling of 47469749 in words is "forty-seven million, four hundred sixty-nine thousand, seven hundred forty-nine".