47394819 has 12 divisors (see below), whose sum is σ = 68746392. Its totient is φ = 31464000.

The previous prime is 47394803. The next prime is 47394829. The reversal of 47394819 is 91849374.

It is not a de Polignac number, because 47394819 - 2⁴ = 47394803 is a prime.

It is a super-2 number, since 2×47394819² = 4492537736085522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47394829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8757 + ... + 13094.

It is an arithmetic number, because the mean of its divisors is an integer number (5728866).

Almost surely, 2^47394819 is an apocalyptic number.

47394819 is a deficient number, since it is larger than the sum of its proper divisors (21351573).

47394819 is a wasteful number, since it uses less digits than its factorization.

47394819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22098 (or 22095 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 47394819 is about 6884.3895154182. The cubic root of 47394819 is about 361.8903114858.

The spelling of 47394819 in words is "forty-seven million, three hundred ninety-four thousand, eight hundred nineteen".