65903387 has 4 divisors (see below), whose sum is σ = 71894616. Its totient is φ = 59912160.

The previous prime is 65903323. The next prime is 65903389. The reversal of 65903387 is 78330956.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 65903387 - 2⁶ = 65903323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65903389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2995598 + ... + 2995619.

It is an arithmetic number, because the mean of its divisors is an integer number (17973654).

Almost surely, 2^65903387 is an apocalyptic number.

65903387 is a deficient number, since it is larger than the sum of its proper divisors (5991229).

65903387 is a wasteful number, since it uses less digits than its factorization.

65903387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5991228.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 65903387 is about 8118.0901079010. The cubic root of 65903387 is about 403.9267157044.

The spelling of 65903387 in words is "sixty-five million, nine hundred three thousand, three hundred eighty-seven".