65042893 has 4 divisors (see below), whose sum is σ = 65402428. Its totient is φ = 64683360.

The previous prime is 65042881. The next prime is 65042903. The reversal of 65042893 is 39824056.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10843849 + 54199044 = 3293^2 + 7362^2 .

It is a cyclic number.

It is not a de Polignac number, because 65042893 - 2⁹ = 65042381 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 (65042293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179496 + ... + 179857.

It is an arithmetic number, because the mean of its divisors is an integer number (16350607).

Almost surely, 2^65042893 is an apocalyptic number.

It is an amenable number.

65042893 is a deficient number, since it is larger than the sum of its proper divisors (359535).

65042893 is a wasteful number, since it uses less digits than its factorization.

65042893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359534.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 65042893 is about 8064.9174205320. The cubic root of 65042893 is about 402.1609979454.

The spelling of 65042893 in words is "sixty-five million, forty-two thousand, eight hundred ninety-three".