71416957 has 4 divisors (see below), whose sum is σ = 73158876. Its totient is φ = 69675040.

The previous prime is 71416951. The next prime is 71416967. The reversal of 71416957 is 75961417.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41100921 + 30316036 = 6411^2 + 5506^2 .

It is a cyclic number.

It is not a de Polignac number, because 71416957 - 2¹⁵ = 71384189 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71416951) 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, 870898 + ... + 870979.

It is an arithmetic number, because the mean of its divisors is an integer number (18289719).

Almost surely, 2^71416957 is an apocalyptic number.

It is an amenable number.

71416957 is a deficient number, since it is larger than the sum of its proper divisors (1741919).

71416957 is a wasteful number, since it uses less digits than its factorization.

71416957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741918.

The product of its digits is 52920, while the sum is 40.

The square root of 71416957 is about 8450.8554004905. The cubic root of 71416957 is about 414.8907768885.

It can be divided in two parts, 714 and 16957, that added together give a palindrome (17671).

The spelling of 71416957 in words is "seventy-one million, four hundred sixteen thousand, nine hundred fifty-seven".