65392387 has 8 divisors (see below), whose sum is σ = 69367536. Its totient is φ = 61431552.

The previous prime is 65392373. The next prime is 65392391. The reversal of 65392387 is 78329356.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65392387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65392307) 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, 6703 + ... + 13255.

It is an arithmetic number, because the mean of its divisors is an integer number (8670942).

Almost surely, 2^65392387 is an apocalyptic number.

65392387 is a deficient number, since it is larger than the sum of its proper divisors (3975149).

65392387 is a wasteful number, since it uses less digits than its factorization.

65392387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7157.

The product of its digits is 272160, while the sum is 43.

The square root of 65392387 is about 8086.5559418086. Note that the first 3 decimals coincide. The cubic root of 65392387 is about 402.8800201918.

The spelling of 65392387 in words is "sixty-five million, three hundred ninety-two thousand, three hundred eighty-seven".