47884397 has 4 divisors (see below), whose sum is σ = 52237536. Its totient is φ = 43531260.

The previous prime is 47884381. The next prime is 47884439. The reversal of 47884397 is 79348874.

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 47884397 - 2⁴ = 47884381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47884337) 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, 2176553 + ... + 2176574.

It is an arithmetic number, because the mean of its divisors is an integer number (13059384).

Almost surely, 2^47884397 is an apocalyptic number.

It is an amenable number.

47884397 is a deficient number, since it is larger than the sum of its proper divisors (4353139).

47884397 is a wasteful number, since it uses less digits than its factorization.

47884397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4353138.

The product of its digits is 1354752, while the sum is 50.

The square root of 47884397 is about 6919.8552730530. The cubic root of 47884397 is about 363.1321276533.

The spelling of 47884397 in words is "forty-seven million, eight hundred eighty-four thousand, three hundred ninety-seven".