65283919 has 4 divisors (see below), whose sum is σ = 65576896. Its totient is φ = 64990944.

The previous prime is 65283917. The next prime is 65283949. The reversal of 65283919 is 91938256.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 65283919 - 2¹ = 65283917 is a prime.

It is a super-2 number, since 2×65283919² = 8523980159997122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65283917) 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, 146154 + ... + 146599.

It is an arithmetic number, because the mean of its divisors is an integer number (16394224).

Almost surely, 2^65283919 is an apocalyptic number.

65283919 is a deficient number, since it is larger than the sum of its proper divisors (292977).

65283919 is a wasteful number, since it uses less digits than its factorization.

65283919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292976.

The product of its digits is 116640, while the sum is 43.

The square root of 65283919 is about 8079.8464713137. The cubic root of 65283919 is about 402.6571411677.

The spelling of 65283919 in words is "sixty-five million, two hundred eighty-three thousand, nine hundred nineteen".