47429997 has 16 divisors (see below), whose sum is σ = 64350720. Its totient is φ = 31069872.

The previous prime is 47429981. The next prime is 47430007. The reversal of 47429997 is 79992474.

It is not a de Polignac number, because 47429997 - 2⁴ = 47429981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47429927) 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, 44088 + ... + 45150.

It is an arithmetic number, because the mean of its divisors is an integer number (4021920).

Almost surely, 2^47429997 is an apocalyptic number.

It is an amenable number.

47429997 is a deficient number, since it is larger than the sum of its proper divisors (16920723).

47429997 is a wasteful number, since it uses less digits than its factorization.

47429997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312.

The product of its digits is 1143072, while the sum is 51.

The square root of 47429997 is about 6886.9439521460. The cubic root of 47429997 is about 361.9798249900.

The spelling of 47429997 in words is "forty-seven million, four hundred twenty-nine thousand, nine hundred ninety-seven".