47444709 has 16 divisors (see below), whose sum is σ = 68951232. Its totient is φ = 28843008.

The previous prime is 47444707. The next prime is 47444711. The reversal of 47444709 is 90744474.

It is an interprime number because it is at equal distance from previous prime (47444707) and next prime (47444711).

It is not a de Polignac number, because 47444709 - 2¹ = 47444707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47444707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4092 + ... + 10565.

It is an arithmetic number, because the mean of its divisors is an integer number (4309452).

Almost surely, 2^47444709 is an apocalyptic number.

It is an amenable number.

47444709 is a deficient number, since it is larger than the sum of its proper divisors (21506523).

47444709 is a wasteful number, since it uses less digits than its factorization.

47444709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14756.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 47444709 is about 6888.0119773415. The cubic root of 47444709 is about 362.0172478377.

It can be divided in two parts, 4744 and 4709, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 47444709 in words is "forty-seven million, four hundred forty-four thousand, seven hundred nine".