47874009 has 4 divisors (see below), whose sum is σ = 63832016. Its totient is φ = 31916004.

The previous prime is 47873981. The next prime is 47874011. The reversal of 47874009 is 90047874.

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 not a de Polignac number, because 47874009 - 2⁸ = 47873753 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47876009) 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, 7978999 + ... + 7979004.

It is an arithmetic number, because the mean of its divisors is an integer number (15958004).

Almost surely, 2^47874009 is an apocalyptic number.

It is an amenable number.

47874009 is a deficient number, since it is larger than the sum of its proper divisors (15958007).

47874009 is a wasteful number, since it uses less digits than its factorization.

47874009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15958006.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 47874009 is about 6919.1046386075. The cubic root of 47874009 is about 363.1058665634.

The spelling of 47874009 in words is "forty-seven million, eight hundred seventy-four thousand, nine".