65447438 has 24 divisors (see below), whose sum is σ = 120213000. Its totient is φ = 26571888.

The previous prime is 65447411. The next prime is 65447441. The reversal of 65447438 is 83474456.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 65447395 and 65447404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15713 + ... + 19436.

It is an arithmetic number, because the mean of its divisors is an integer number (5008875).

Almost surely, 2^65447438 is an apocalyptic number.

65447438 is a deficient number, since it is larger than the sum of its proper divisors (54765562).

65447438 is a wasteful number, since it uses less digits than its factorization.

65447438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35184 (or 35177 counting only the distinct ones).

The product of its digits is 322560, while the sum is 41.

The square root of 65447438 is about 8089.9590851870. The cubic root of 65447438 is about 402.9930441899.

The spelling of 65447438 in words is "sixty-five million, four hundred forty-seven thousand, four hundred thirty-eight".