47457429 has 4 divisors (see below), whose sum is σ = 63276576. Its totient is φ = 31638284.

The previous prime is 47457413. The next prime is 47457439. The reversal of 47457429 is 92475474.

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 47457429 - 2⁴ = 47457413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47457439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7909569 + ... + 7909574.

It is an arithmetic number, because the mean of its divisors is an integer number (15819144).

Almost surely, 2^47457429 is an apocalyptic number.

It is an amenable number.

47457429 is a deficient number, since it is larger than the sum of its proper divisors (15819147).

47457429 is a wasteful number, since it uses less digits than its factorization.

47457429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15819146.

The product of its digits is 282240, while the sum is 42.

The square root of 47457429 is about 6888.9352588045. The cubic root of 47457429 is about 362.0495974086.

The spelling of 47457429 in words is "forty-seven million, four hundred fifty-seven thousand, four hundred twenty-nine".