65217942 has 24 divisors (see below), whose sum is σ = 141526944. Its totient is φ = 21705264.

The previous prime is 65217883. The next prime is 65217959. The reversal of 65217942 is 24971256.

It is a junction number, because it is equal to n+sod(n) for n = 65217897 and 65217906.

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, 10723 + ... + 15665.

It is an arithmetic number, because the mean of its divisors is an integer number (5896956).

Almost surely, 2^65217942 is an apocalyptic number.

65217942 is an abundant number, since it is smaller than the sum of its proper divisors (76309002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65217942 is a wasteful number, since it uses less digits than its factorization.

65217942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5684 (or 5681 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 65217942 is about 8075.7626265264. The cubic root of 65217942 is about 402.5214514756.

The spelling of 65217942 in words is "sixty-five million, two hundred seventeen thousand, nine hundred forty-two".