65671941 has 4 divisors (see below), whose sum is σ = 87562592. Its totient is φ = 43781292.

The previous prime is 65671927. The next prime is 65671951. The reversal of 65671941 is 14917656.

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 not a de Polignac number, because 65671941 - 2¹¹ = 65669893 is a prime.

It is a super-3 number, since 3×65671941³ (a number of 24 digits) contains 333 as substring.

It is a fibodiv number, since the Fibonacci-like sequence with seeds 6567 and 1941 contains 65671941 itself.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65671941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65671951) 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, 10945321 + ... + 10945326.

It is an arithmetic number, because the mean of its divisors is an integer number (21890648).

Almost surely, 2^65671941 is an apocalyptic number.

It is an amenable number.

65671941 is a deficient number, since it is larger than the sum of its proper divisors (21890651).

65671941 is a wasteful number, since it uses less digits than its factorization.

65671941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21890650.

The product of its digits is 45360, while the sum is 39.

The square root of 65671941 is about 8103.8226165187. The cubic root of 65671941 is about 403.4533112248.

The spelling of 65671941 in words is "sixty-five million, six hundred seventy-one thousand, nine hundred forty-one".