65107838 has 4 divisors (see below), whose sum is σ = 97661760. Its totient is φ = 32553918.

The previous prime is 65107811. The next prime is 65107859. The reversal of 65107838 is 83870156.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16276958 + ... + 16276961.

It is an arithmetic number, because the mean of its divisors is an integer number (24415440).

Almost surely, 2^65107838 is an apocalyptic number.

65107838 is a deficient number, since it is larger than the sum of its proper divisors (32553922).

65107838 is a wasteful number, since it uses less digits than its factorization.

65107838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32553921.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 65107838 is about 8068.9428055973. The cubic root of 65107838 is about 402.2948053280.

The spelling of 65107838 in words is "sixty-five million, one hundred seven thousand, eight hundred thirty-eight".