47428773 has 16 divisors (see below), whose sum is σ = 73145856. Its totient is φ = 26774640.

The previous prime is 47428763. The next prime is 47428811. The reversal of 47428773 is 37782474.

It is not a de Polignac number, because 47428773 - 2⁹ = 47428261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47428763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11863 + ... + 15348.

It is an arithmetic number, because the mean of its divisors is an integer number (4571616).

Almost surely, 2^47428773 is an apocalyptic number.

It is an amenable number.

47428773 is a deficient number, since it is larger than the sum of its proper divisors (25717083).

47428773 is a wasteful number, since it uses less digits than its factorization.

47428773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27304.

The product of its digits is 263424, while the sum is 42.

The square root of 47428773 is about 6886.8550877741. The cubic root of 47428773 is about 361.9767111581.

The spelling of 47428773 in words is "forty-seven million, four hundred twenty-eight thousand, seven hundred seventy-three".