65673300 has 144 divisors (see below), whose sum is σ = 236984832. Its totient is φ = 13641600.

The previous prime is 65673281. The next prime is 65673301. The reversal of 65673300 is 337656.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65673301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21679 + ... + 24521.

It is an arithmetic number, because the mean of its divisors is an integer number (1645728).

Almost surely, 2^65673300 is an apocalyptic number.

65673300 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65673300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118492416).

65673300 is an abundant number, since it is smaller than the sum of its proper divisors (171311532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65673300 is a wasteful number, since it uses less digits than its factorization.

65673300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2878 (or 2871 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 30.

The square root of 65673300 is about 8103.9064654030. The cubic root of 65673300 is about 403.4560941956.

The spelling of 65673300 in words is "sixty-five million, six hundred seventy-three thousand, three hundred".