65648836 has 12 divisors (see below), whose sum is σ = 125329680. Its totient is φ = 29840360.

The previous prime is 65648813. The next prime is 65648861. The reversal of 65648836 is 63884656.

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, 745966 + ... + 746053.

It is an arithmetic number, because the mean of its divisors is an integer number (10444140).

Almost surely, 2^65648836 is an apocalyptic number.

It is an amenable number.

65648836 is a deficient number, since it is larger than the sum of its proper divisors (59680844).

65648836 is a wasteful number, since it uses less digits than its factorization.

65648836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492034 (or 1492032 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The square root of 65648836 is about 8102.3969293043. The cubic root of 65648836 is about 403.4059907506.

It can be divided in two parts, 6564 and 8836, that added together give a triangular number (15400 = T₁₇₅).

The spelling of 65648836 in words is "sixty-five million, six hundred forty-eight thousand, eight hundred thirty-six".