47428497 has 24 divisors (see below), whose sum is σ = 72072000. Its totient is φ = 31162320.

The previous prime is 47428483. The next prime is 47428529. The reversal of 47428497 is 79482474.

It is not a de Polignac number, because 47428497 - 2¹⁶ = 47362961 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (47428417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15879 + ... + 18627.

It is an arithmetic number, because the mean of its divisors is an integer number (3003000).

Almost surely, 2^47428497 is an apocalyptic number.

It is an amenable number.

47428497 is a deficient number, since it is larger than the sum of its proper divisors (24643503).

47428497 is an equidigital number, since it uses as much as digits as its factorization.

47428497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2835 (or 2823 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 47428497 is about 6886.8350495710. The cubic root of 47428497 is about 361.9760090121.

The spelling of 47428497 in words is "forty-seven million, four hundred twenty-eight thousand, four hundred ninety-seven".