47061309 has 8 divisors (see below), whose sum is σ = 66051040. Its totient is φ = 29722896.

The previous prime is 47061283. The next prime is 47061323. The reversal of 47061309 is 90316074.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47061309 - 2¹⁷ = 46930237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47061359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412762 + ... + 412875.

It is an arithmetic number, because the mean of its divisors is an integer number (8256380).

Almost surely, 2^47061309 is an apocalyptic number.

It is an amenable number.

47061309 is a deficient number, since it is larger than the sum of its proper divisors (18989731).

47061309 is a wasteful number, since it uses less digits than its factorization.

47061309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825659.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 47061309 is about 6860.1245615513. The cubic root of 47061309 is about 361.0394572219.

The spelling of 47061309 in words is "forty-seven million, sixty-one thousand, three hundred nine".