53739389 has 8 divisors (see below), whose sum is σ = 58872960. Its totient is φ = 48647200.

The previous prime is 53739331. The next prime is 53739401. The reversal of 53739389 is 98393735.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53739389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53739589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7592 + ... + 12849.

It is an arithmetic number, because the mean of its divisors is an integer number (7359120).

Almost surely, 2^53739389 is an apocalyptic number.

It is an amenable number.

53739389 is a deficient number, since it is larger than the sum of its proper divisors (5133571).

53739389 is a wasteful number, since it uses less digits than its factorization.

53739389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20691.

The product of its digits is 612360, while the sum is 47.

The square root of 53739389 is about 7330.7154493951. The cubic root of 53739389 is about 377.3672799235.

The spelling of 53739389 in words is "fifty-three million, seven hundred thirty-nine thousand, three hundred eighty-nine".