74744671 has 2 divisors, whose sum is σ = 74744672. Its totient is φ = 74744670.

The previous prime is 74744653. The next prime is 74744693. The reversal of 74744671 is 17644747.

It is a weak prime.

It is an emirp because it is prime and its reverse (17644747) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74744671 - 2¹³ = 74736479 is a prime.

It is the 8646-th Hogben number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74744171) by changing a digit.

It is a nontrivial repunit in base 8645.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37372335 + 37372336.

It is an arithmetic number, because the mean of its divisors is an integer number (37372336).

Almost surely, 2^74744671 is an apocalyptic number.

74744671 is a deficient number, since it is larger than the sum of its proper divisors (1).

74744671 is an equidigital number, since it uses as much as digits as its factorization.

74744671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131712, while the sum is 40.

The square root of 74744671 is about 8645.5000433752. The cubic root of 74744671 is about 421.2372267316.

The spelling of 74744671 in words is "seventy-four million, seven hundred forty-four thousand, six hundred seventy-one".