52971398 has 8 divisors (see below), whose sum is σ = 79933392. Its totient is φ = 26326936.

The previous prime is 52971379. The next prime is 52971407. The reversal of 52971398 is 89317925.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 78965 + ... + 79632.

It is an arithmetic number, because the mean of its divisors is an integer number (9991674).

Almost surely, 2^52971398 is an apocalyptic number.

52971398 is a deficient number, since it is larger than the sum of its proper divisors (26961994).

52971398 is a wasteful number, since it uses less digits than its factorization.

52971398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158766.

The product of its digits is 136080, while the sum is 44.

The square root of 52971398 is about 7278.1452307576. The cubic root of 52971398 is about 375.5609926438.

The spelling of 52971398 in words is "fifty-two million, nine hundred seventy-one thousand, three hundred ninety-eight".