57429447 has 4 divisors (see below), whose sum is σ = 76572600. Its totient is φ = 38286296.

The previous prime is 57429433. The next prime is 57429461. The reversal of 57429447 is 74492475.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (57429433) and next prime (57429461).

It is a cyclic number.

It is not a de Polignac number, because 57429447 - 2¹¹ = 57427399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57429399 and 57429408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57429497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9571572 + ... + 9571577.

It is an arithmetic number, because the mean of its divisors is an integer number (19143150).

Almost surely, 2^57429447 is an apocalyptic number.

57429447 is a deficient number, since it is larger than the sum of its proper divisors (19143153).

57429447 is a wasteful number, since it uses less digits than its factorization.

57429447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19143152.

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

The square root of 57429447 is about 7578.2218890713. The cubic root of 57429447 is about 385.8142031368.

The spelling of 57429447 in words is "fifty-seven million, four hundred twenty-nine thousand, four hundred forty-seven".