65923470 has 56 divisors (see below), whose sum is σ = 177931656. Its totient is φ = 17577648.

The previous prime is 65923463. The next prime is 65923471. The reversal of 65923470 is 7432956.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65923471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2769 + ... + 11811.

It is an arithmetic number, because the mean of its divisors is an integer number (3177351).

Almost surely, 2^65923470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65923470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88965828).

65923470 is an abundant number, since it is smaller than the sum of its proper divisors (112008186).

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

65923470 is an equidigital number, since it uses as much as digits as its factorization.

65923470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9068 (or 9053 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 65923470 is about 8119.3269425489. The cubic root of 65923470 is about 403.9677415997.

The spelling of 65923470 in words is "sixty-five million, nine hundred twenty-three thousand, four hundred seventy".