65383779 has 16 divisors (see below), whose sum is σ = 93088512. Its totient is φ = 40722528.

The previous prime is 65383763. The next prime is 65383811. The reversal of 65383779 is 97738356.

It is not a de Polignac number, because 65383779 - 2⁴ = 65383763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65383379) 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, 8052 + ... + 13985.

It is an arithmetic number, because the mean of its divisors is an integer number (5818032).

Almost surely, 2^65383779 is an apocalyptic number.

65383779 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

65383779 is a deficient number, since it is larger than the sum of its proper divisors (27704733).

65383779 is a wasteful number, since it uses less digits than its factorization.

65383779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22106.

The product of its digits is 952560, while the sum is 48.

The square root of 65383779 is about 8086.0236828740. The cubic root of 65383779 is about 402.8623415620.

The spelling of 65383779 in words is "sixty-five million, three hundred eighty-three thousand, seven hundred seventy-nine".