65228799 has 8 divisors (see below), whose sum is σ = 88072960. Its totient is φ = 42935256.

The previous prime is 65228797. The next prime is 65228831. The reversal of 65228799 is 99782256.

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

It is not a de Polignac number, because 65228799 - 2¹ = 65228797 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 (65228797) 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, 137377 + ... + 137850.

It is an arithmetic number, because the mean of its divisors is an integer number (11009120).

Almost surely, 2^65228799 is an apocalyptic number.

65228799 is a deficient number, since it is larger than the sum of its proper divisors (22844161).

65228799 is a wasteful number, since it uses less digits than its factorization.

65228799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275309.

The product of its digits is 544320, while the sum is 48.

The square root of 65228799 is about 8076.4347951308. The cubic root of 65228799 is about 402.5437864997.

The spelling of 65228799 in words is "sixty-five million, two hundred twenty-eight thousand, seven hundred ninety-nine".