65219377 has 4 divisors (see below), whose sum is σ = 65240560. Its totient is φ = 65198196.

The previous prime is 65219369. The next prime is 65219383. The reversal of 65219377 is 77391256.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65219377 - 2³ = 65219369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65219317) 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, 4983 + ... + 12460.

It is an arithmetic number, because the mean of its divisors is an integer number (16310140).

Almost surely, 2^65219377 is an apocalyptic number.

It is an amenable number.

65219377 is a deficient number, since it is larger than the sum of its proper divisors (21183).

65219377 is a wasteful number, since it uses less digits than its factorization.

65219377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21182.

The product of its digits is 79380, while the sum is 40.

The square root of 65219377 is about 8075.8514721359. The cubic root of 65219377 is about 402.5244037002.

The spelling of 65219377 in words is "sixty-five million, two hundred nineteen thousand, three hundred seventy-seven".