65942287 has 8 divisors (see below), whose sum is σ = 67095504. Its totient is φ = 64795968.

The previous prime is 65942273. The next prime is 65942291. The reversal of 65942287 is 78224956.

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

It is a de Polignac number, because none of the positive numbers 2^k-65942287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65942207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19848 + ... + 22930.

It is an arithmetic number, because the mean of its divisors is an integer number (8386938).

Almost surely, 2^65942287 is an apocalyptic number.

65942287 is a deficient number, since it is larger than the sum of its proper divisors (1153217).

65942287 is a wasteful number, since it uses less digits than its factorization.

65942287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449.

The product of its digits is 241920, while the sum is 43.

The square root of 65942287 is about 8120.4856381869. The cubic root of 65942287 is about 404.0061737285.

The spelling of 65942287 in words is "sixty-five million, nine hundred forty-two thousand, two hundred eighty-seven".