71211414 has 16 divisors (see below), whose sum is σ = 147334320. Its totient is φ = 22918560.

The previous prime is 71211409. The next prime is 71211431. The reversal of 71211414 is 41411217.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204457 + ... + 204804.

It is an arithmetic number, because the mean of its divisors is an integer number (9208395).

Almost surely, 2^71211414 is an apocalyptic number.

71211414 is an abundant number, since it is smaller than the sum of its proper divisors (76122906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71211414 is a wasteful number, since it uses less digits than its factorization.

71211414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409295.

The product of its digits is 224, while the sum is 21.

The square root of 71211414 is about 8438.6855611523. The cubic root of 71211414 is about 414.4923661957.

The spelling of 71211414 in words is "seventy-one million, two hundred eleven thousand, four hundred fourteen".