65913838 has 4 divisors (see below), whose sum is σ = 98870760. Its totient is φ = 32956918.

The previous prime is 65913833. The next prime is 65913853. The reversal of 65913838 is 83831956.

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

It is a junction number, because it is equal to n+sod(n) for n = 65913794 and 65913803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65913833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16478458 + ... + 16478461.

It is an arithmetic number, because the mean of its divisors is an integer number (24717690).

Almost surely, 2^65913838 is an apocalyptic number.

65913838 is a deficient number, since it is larger than the sum of its proper divisors (32956922).

65913838 is a wasteful number, since it uses less digits than its factorization.

65913838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32956921.

The product of its digits is 155520, while the sum is 43.

The square root of 65913838 is about 8118.7337682671. The cubic root of 65913838 is about 403.9480662256.

The spelling of 65913838 in words is "sixty-five million, nine hundred thirteen thousand, eight hundred thirty-eight".