74144671 has 2 divisors, whose sum is σ = 74144672. Its totient is φ = 74144670.

The previous prime is 74144639. The next prime is 74144689. The reversal of 74144671 is 17644147.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74144671 - 2⁵ = 74144639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74144621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37072335 + 37072336.

It is an arithmetic number, because the mean of its divisors is an integer number (37072336).

Almost surely, 2^74144671 is an apocalyptic number.

74144671 is a deficient number, since it is larger than the sum of its proper divisors (1).

74144671 is an equidigital number, since it uses as much as digits as its factorization.

74144671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18816, while the sum is 34.

The square root of 74144671 is about 8610.7299922829. The cubic root of 74144671 is about 420.1070607646.

The spelling of 74144671 in words is "seventy-four million, one hundred forty-four thousand, six hundred seventy-one".