65857742 has 8 divisors (see below), whose sum is σ = 99255432. Its totient is φ = 32772600.

The previous prime is 65857721. The next prime is 65857777. The reversal of 65857742 is 24775856.

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

It is a junction number, because it is equal to n+sod(n) for n = 65857693 and 65857702.

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, 77609 + ... + 78452.

It is an arithmetic number, because the mean of its divisors is an integer number (12406929).

Almost surely, 2^65857742 is an apocalyptic number.

65857742 is a deficient number, since it is larger than the sum of its proper divisors (33397690).

65857742 is a wasteful number, since it uses less digits than its factorization.

65857742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156274.

The product of its digits is 470400, while the sum is 44.

The square root of 65857742 is about 8115.2783069960. The cubic root of 65857742 is about 403.8334403105.

The spelling of 65857742 in words is "sixty-five million, eight hundred fifty-seven thousand, seven hundred forty-two".