47361309 has 4 divisors (see below), whose sum is σ = 63148416. Its totient is φ = 31574204.

The previous prime is 47361283. The next prime is 47361313. The reversal of 47361309 is 90316374.

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 a de Polignac number, because none of the positive numbers 2^k-47361309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47361309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47361359) 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, 7893549 + ... + 7893554.

It is an arithmetic number, because the mean of its divisors is an integer number (15787104).

Almost surely, 2^47361309 is an apocalyptic number.

It is an amenable number.

47361309 is a deficient number, since it is larger than the sum of its proper divisors (15787107).

47361309 is a wasteful number, since it uses less digits than its factorization.

47361309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15787106.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 47361309 is about 6881.9553180764. The cubic root of 47361309 is about 361.8050011517.

The spelling of 47361309 in words is "forty-seven million, three hundred sixty-one thousand, three hundred nine".