71612743 has 2 divisors, whose sum is σ = 71612744. Its totient is φ = 71612742.

The previous prime is 71612713. The next prime is 71612771. The reversal of 71612743 is 34721617.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71612743 - 2¹³ = 71604551 is a prime.

It is equal to p_4207378 and since 71612743 and 4207378 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71612713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35806371 + 35806372.

It is an arithmetic number, because the mean of its divisors is an integer number (35806372).

Almost surely, 2^71612743 is an apocalyptic number.

71612743 is a deficient number, since it is larger than the sum of its proper divisors (1).

71612743 is an equidigital number, since it uses as much as digits as its factorization.

71612743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 31.

The square root of 71612743 is about 8462.4312700311. The cubic root of 71612743 is about 415.2695650304.

The spelling of 71612743 in words is "seventy-one million, six hundred twelve thousand, seven hundred forty-three".