65078712 has 24 divisors (see below), whose sum is σ = 176255040. Its totient is φ = 21692880.

The previous prime is 65078701. The next prime is 65078719. The reversal of 65078712 is 21787056.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65078719) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 451864 + ... + 452007.

It is an arithmetic number, because the mean of its divisors is an integer number (7343960).

Almost surely, 2^65078712 is an apocalyptic number.

It is an amenable number.

65078712 is an abundant number, since it is smaller than the sum of its proper divisors (111176328).

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

65078712 is a wasteful number, since it uses less digits than its factorization.

65078712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903883 (or 903876 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 65078712 is about 8067.1377823860. The cubic root of 65078712 is about 402.2348075022.

The spelling of 65078712 in words is "sixty-five million, seventy-eight thousand, seven hundred twelve".