65289315 has 48 divisors (see below), whose sum is σ = 130884768. Its totient is φ = 27546624.

The previous prime is 65289307. The next prime is 65289319. The reversal of 65289315 is 51398256.

It is not a de Polignac number, because 65289315 - 2³ = 65289307 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65289319) 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, 6139 + ... + 12971.

It is an arithmetic number, because the mean of its divisors is an integer number (2726766).

Almost surely, 2^65289315 is an apocalyptic number.

65289315 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

65289315 is an abundant number, since it is smaller than the sum of its proper divisors (65595453).

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

65289315 is a wasteful number, since it uses less digits than its factorization.

65289315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6868 (or 6861 counting only the distinct ones).

The product of its digits is 64800, while the sum is 39.

The square root of 65289315 is about 8080.1803816499. The cubic root of 65289315 is about 402.6682346504.

The spelling of 65289315 in words is "sixty-five million, two hundred eighty-nine thousand, three hundred fifteen".