47007109 has 6 divisors (see below), whose sum is σ = 47665266. Its totient is φ = 46357920.

The previous prime is 47007071. The next prime is 47007113. The reversal of 47007109 is 90170074.

It can be written as a sum of positive squares in 3 ways, for example, as 11937025 + 35070084 = 3455^2 + 5922^2 .

It is not a de Polignac number, because 47007109 - 2¹⁵ = 46974341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47007139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 919 + ... + 9739.

It is an arithmetic number, because the mean of its divisors is an integer number (7944211).

Almost surely, 2^47007109 is an apocalyptic number.

It is an amenable number.

47007109 is a deficient number, since it is larger than the sum of its proper divisors (658157).

47007109 is an frugal number, since it uses more digits than its factorization.

47007109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8967 (or 8894 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 47007109 is about 6856.1730579092. The cubic root of 47007109 is about 360.9008022346.

The spelling of 47007109 in words is "forty-seven million, seven thousand, one hundred nine".