47408649 has 8 divisors (see below), whose sum is σ = 65391360. Its totient is φ = 30515856.

The previous prime is 47408573. The next prime is 47408657. The reversal of 47408649 is 94680474.

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

It is a de Polignac number, because none of the positive numbers 2^k-47408649 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47408649.

It is not an unprimeable number, because it can be changed into a prime (47408689) 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, 272377 + ... + 272550.

It is an arithmetic number, because the mean of its divisors is an integer number (8173920).

Almost surely, 2^47408649 is an apocalyptic number.

It is an amenable number.

47408649 is a deficient number, since it is larger than the sum of its proper divisors (17982711).

47408649 is a wasteful number, since it uses less digits than its factorization.

47408649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544959.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 47408649 is about 6885.3938885150. The cubic root of 47408649 is about 361.9255084150.

The spelling of 47408649 in words is "forty-seven million, four hundred eight thousand, six hundred forty-nine".