47427019 has 4 divisors (see below), whose sum is σ = 47675520. Its totient is φ = 47178520.

The previous prime is 47426999. The next prime is 47427047. The reversal of 47427019 is 91072474.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47427019 - 2⁵ = 47426987 is a prime.

It is a super-2 number, since 2×47427019² = 4498644262452722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47427049) 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, 123964 + ... + 124345.

It is an arithmetic number, because the mean of its divisors is an integer number (11918880).

Almost surely, 2^47427019 is an apocalyptic number.

47427019 is a deficient number, since it is larger than the sum of its proper divisors (248501).

47427019 is a wasteful number, since it uses less digits than its factorization.

47427019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248500.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 47427019 is about 6886.7277425494. The cubic root of 47427019 is about 361.9722489232.

The spelling of 47427019 in words is "forty-seven million, four hundred twenty-seven thousand, nineteen".