53987398 has 8 divisors (see below), whose sum is σ = 85243320. Its totient is φ = 25572960.

The previous prime is 53987389. The next prime is 53987407. The reversal of 53987398 is 89378935.

53987398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53987389) and next prime (53987407).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710323 + ... + 710398.

It is an arithmetic number, because the mean of its divisors is an integer number (10655415).

Almost surely, 2^53987398 is an apocalyptic number.

53987398 is a deficient number, since it is larger than the sum of its proper divisors (31255922).

53987398 is a wasteful number, since it uses less digits than its factorization.

53987398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420742.

The product of its digits is 1632960, while the sum is 52.

The square root of 53987398 is about 7347.6117208247. The cubic root of 53987398 is about 377.9469098567.

The spelling of 53987398 in words is "fifty-three million, nine hundred eighty-seven thousand, three hundred ninety-eight".