53790387 has 24 divisors (see below), whose sum is σ = 87825600. Its totient is φ = 29118096.

The previous prime is 53790379. The next prime is 53790403. The reversal of 53790387 is 78309735.

It is not a de Polignac number, because 53790387 - 2³ = 53790379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53790367) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6837 + ... + 12422.

It is an arithmetic number, because the mean of its divisors is an integer number (3659400).

Almost surely, 2^53790387 is an apocalyptic number.

53790387 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

53790387 is a deficient number, since it is larger than the sum of its proper divisors (34035213).

53790387 is a wasteful number, since it uses less digits than its factorization.

53790387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19295 (or 19288 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 53790387 is about 7334.1930026418. The cubic root of 53790387 is about 377.4866144399.

The spelling of 53790387 in words is "fifty-three million, seven hundred ninety thousand, three hundred eighty-seven".