74871743 has 2 divisors, whose sum is σ = 74871744. Its totient is φ = 74871742.

The previous prime is 74871721. The next prime is 74871749. The reversal of 74871743 is 34717847.

It is a strong prime.

It is an emirp because it is prime and its reverse (34717847) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74871743 - 2⁶ = 74871679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74871743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74871749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37435871 + 37435872.

It is an arithmetic number, because the mean of its divisors is an integer number (37435872).

Almost surely, 2^74871743 is an apocalyptic number.

74871743 is a deficient number, since it is larger than the sum of its proper divisors (1).

74871743 is an equidigital number, since it uses as much as digits as its factorization.

74871743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131712, while the sum is 41.

The square root of 74871743 is about 8652.8459480104. The cubic root of 74871743 is about 421.4758040603.

The spelling of 74871743 in words is "seventy-four million, eight hundred seventy-one thousand, seven hundred forty-three".