65713420 has 48 divisors (see below), whose sum is σ = 143972640. Its totient is φ = 25163264.

The previous prime is 65713387. The next prime is 65713423. The reversal of 65713420 is 2431756.

It is not an unprimeable number, because it can be changed into a prime (65713423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79047 + ... + 79873.

It is an arithmetic number, because the mean of its divisors is an integer number (2999430).

Almost surely, 2^65713420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65713420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71986320).

65713420 is an abundant number, since it is smaller than the sum of its proper divisors (78259220).

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

65713420 is a wasteful number, since it uses less digits than its factorization.

65713420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 65713420 is about 8106.3814368681. The cubic root of 65713420 is about 403.5382349512.

The spelling of 65713420 in words is "sixty-five million, seven hundred thirteen thousand, four hundred twenty".