71941961 has 16 divisors (see below), whose sum is σ = 93206400. Its totient is φ = 53923968.

The previous prime is 71941937. The next prime is 71941963. The reversal of 71941961 is 16914917.

It is not a de Polignac number, because 71941961 - 2⁶ = 71941897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71941963) 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, 19076 + ... + 22533.

It is an arithmetic number, because the mean of its divisors is an integer number (5825400).

Almost surely, 2^71941961 is an apocalyptic number.

It is an amenable number.

71941961 is a deficient number, since it is larger than the sum of its proper divisors (21264439).

71941961 is a wasteful number, since it uses less digits than its factorization.

71941961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41648.

The product of its digits is 13608, while the sum is 38.

The square root of 71941961 is about 8481.8607038786. The cubic root of 71941961 is about 415.9049512414.

The spelling of 71941961 in words is "seventy-one million, nine hundred forty-one thousand, nine hundred sixty-one".