47842453 has 4 divisors (see below), whose sum is σ = 48147340. Its totient is φ = 47537568.

The previous prime is 47842447. The next prime is 47842469. The reversal of 47842453 is 35424874.

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 36505764 + 11336689 = 6042^2 + 3367^2 .

It is a cyclic number.

It is not a de Polignac number, because 47842453 - 2¹³ = 47834261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47842423) 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, 152208 + ... + 152521.

It is an arithmetic number, because the mean of its divisors is an integer number (12036835).

Almost surely, 2^47842453 is an apocalyptic number.

It is an amenable number.

47842453 is a deficient number, since it is larger than the sum of its proper divisors (304887).

47842453 is a wasteful number, since it uses less digits than its factorization.

47842453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304886.

The product of its digits is 107520, while the sum is 37.

The square root of 47842453 is about 6916.8239098592. The cubic root of 47842453 is about 363.0260690044.

The spelling of 47842453 in words is "forty-seven million, eight hundred forty-two thousand, four hundred fifty-three".