47020923 has 6 divisors (see below), whose sum is σ = 67919124. Its totient is φ = 31347276.

The previous prime is 47020921. The next prime is 47020937. The reversal of 47020923 is 32902074.

It is not a de Polignac number, because 47020923 - 2¹ = 47020921 is a prime.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (47020921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2612265 + ... + 2612282.

It is an arithmetic number, because the mean of its divisors is an integer number (11319854).

Almost surely, 2^47020923 is an apocalyptic number.

47020923 is a deficient number, since it is larger than the sum of its proper divisors (20898201).

47020923 is a wasteful number, since it uses less digits than its factorization.

47020923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5224553 (or 5224550 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 47020923 is about 6857.1803972187. The cubic root of 47020923 is about 360.9361514651.

Adding to 47020923 its reverse (32902074), we get a palindrome (79922997).

The spelling of 47020923 in words is "forty-seven million, twenty thousand, nine hundred twenty-three".