47403109 has 4 divisors (see below), whose sum is σ = 51049516. Its totient is φ = 43756704.

The previous prime is 47403101. The next prime is 47403113. The reversal of 47403109 is 90130474.

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 31024900 + 16378209 = 5570^2 + 4047^2 .

It is a cyclic number.

It is not a de Polignac number, because 47403109 - 2³ = 47403101 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 (47403101) 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, 1823184 + ... + 1823209.

It is an arithmetic number, because the mean of its divisors is an integer number (12762379).

Almost surely, 2^47403109 is an apocalyptic number.

It is an amenable number.

47403109 is a deficient number, since it is larger than the sum of its proper divisors (3646407).

47403109 is a wasteful number, since it uses less digits than its factorization.

47403109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3646406.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 47403109 is about 6884.9915758845. The cubic root of 47403109 is about 361.9114101055.

The spelling of 47403109 in words is "forty-seven million, four hundred three thousand, one hundred nine".