65671263 has 32 divisors (see below), whose sum is σ = 114206720. Its totient is φ = 36508320.

The previous prime is 65671261. The next prime is 65671271. The reversal of 65671263 is 36217656.

It is not a de Polignac number, because 65671263 - 2¹ = 65671261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65671261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2298 + ... + 11688.

It is an arithmetic number, because the mean of its divisors is an integer number (3568960).

Almost surely, 2^65671263 is an apocalyptic number.

65671263 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

65671263 is a deficient number, since it is larger than the sum of its proper divisors (48535457).

65671263 is a wasteful number, since it uses less digits than its factorization.

65671263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9444 (or 9438 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 65671263 is about 8103.7807843006. The cubic root of 65671263 is about 403.4519227968.

The spelling of 65671263 in words is "sixty-five million, six hundred seventy-one thousand, two hundred sixty-three".