47346409 has 4 divisors (see below), whose sum is σ = 51650640. Its totient is φ = 43042180.

The previous prime is 47346401. The next prime is 47346419. The reversal of 47346409 is 90464374.

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 not a de Polignac number, because 47346409 - 2³ = 47346401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47346401) 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, 2152099 + ... + 2152120.

It is an arithmetic number, because the mean of its divisors is an integer number (12912660).

Almost surely, 2^47346409 is an apocalyptic number.

It is an amenable number.

47346409 is a deficient number, since it is larger than the sum of its proper divisors (4304231).

47346409 is a wasteful number, since it uses less digits than its factorization.

47346409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4304230.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 47346409 is about 6880.8726917448. The cubic root of 47346409 is about 361.7670555511.

The spelling of 47346409 in words is "forty-seven million, three hundred forty-six thousand, four hundred nine".