65257838 has 8 divisors (see below), whose sum is σ = 98143488. Its totient is φ = 32543344.

The previous prime is 65257823. The next prime is 65257847. The reversal of 65257838 is 83875256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41831 + ... + 43362.

It is an arithmetic number, because the mean of its divisors is an integer number (12267936).

Almost surely, 2^65257838 is an apocalyptic number.

65257838 is a deficient number, since it is larger than the sum of its proper divisors (32885650).

65257838 is a wasteful number, since it uses less digits than its factorization.

65257838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85578.

The product of its digits is 403200, while the sum is 44.

The square root of 65257838 is about 8078.2323561532. The cubic root of 65257838 is about 402.6035133634.

The spelling of 65257838 in words is "sixty-five million, two hundred fifty-seven thousand, eight hundred thirty-eight".