47398429 has 4 divisors (see below), whose sum is σ = 51044476. Its totient is φ = 43752384.

The previous prime is 47398399. The next prime is 47398433. The reversal of 47398429 is 92489374.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25775929 + 21622500 = 5077^2 + 4650^2 .

It is not a de Polignac number, because 47398429 - 2¹⁹ = 46874141 is a prime.

It is a super-2 number, since 2×47398429² = 4493222143336082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47396429) 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, 1823004 + ... + 1823029.

It is an arithmetic number, because the mean of its divisors is an integer number (12761119).

Almost surely, 2^47398429 is an apocalyptic number.

It is an amenable number.

47398429 is a deficient number, since it is larger than the sum of its proper divisors (3646047).

47398429 is a wasteful number, since it uses less digits than its factorization.

47398429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3646046.

The product of its digits is 435456, while the sum is 46.

The square root of 47398429 is about 6884.6516977985. The cubic root of 47398429 is about 361.8994994863.

The spelling of 47398429 in words is "forty-seven million, three hundred ninety-eight thousand, four hundred twenty-nine".