65211379 has 4 divisors (see below), whose sum is σ = 66280480. Its totient is φ = 64142280.

The previous prime is 65211323. The next prime is 65211403. The reversal of 65211379 is 97311256.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65211379 - 2⁹ = 65210867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65211079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534459 + ... + 534580.

It is an arithmetic number, because the mean of its divisors is an integer number (16570120).

Almost surely, 2^65211379 is an apocalyptic number.

65211379 is a deficient number, since it is larger than the sum of its proper divisors (1069101).

65211379 is a wasteful number, since it uses less digits than its factorization.

65211379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069100.

The product of its digits is 11340, while the sum is 34.

The square root of 65211379 is about 8075.3562769701. The cubic root of 65211379 is about 402.5079488676.

The spelling of 65211379 in words is "sixty-five million, two hundred eleven thousand, three hundred seventy-nine".