65375390 has 32 divisors (see below), whose sum is σ = 124619040. Its totient is φ = 24624000.

The previous prime is 65375383. The next prime is 65375393. The reversal of 65375390 is 9357356.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65375393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33440 + ... + 35340.

It is an arithmetic number, because the mean of its divisors is an integer number (3894345).

Almost surely, 2^65375390 is an apocalyptic number.

65375390 is a deficient number, since it is larger than the sum of its proper divisors (59243650).

65375390 is a wasteful number, since it uses less digits than its factorization.

65375390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108.

The product of its (nonzero) digits is 85050, while the sum is 38.

The square root of 65375390 is about 8085.5049316663. The cubic root of 65375390 is about 402.8451112093.

The spelling of 65375390 in words is "sixty-five million, three hundred seventy-five thousand, three hundred ninety".