74579971 has 2 divisors, whose sum is σ = 74579972. Its totient is φ = 74579970.

The previous prime is 74579951. The next prime is 74579983. The reversal of 74579971 is 17997547.

It is a strong prime.

It is an emirp because it is prime and its reverse (17997547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74579971 - 2¹³ = 74571779 is a prime.

It is not a weakly prime, because it can be changed into another prime (74579951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37289985 + 37289986.

It is an arithmetic number, because the mean of its divisors is an integer number (37289986).

Almost surely, 2^74579971 is an apocalyptic number.

74579971 is a deficient number, since it is larger than the sum of its proper divisors (1).

74579971 is an equidigital number, since it uses as much as digits as its factorization.

74579971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 555660, while the sum is 49.

The square root of 74579971 is about 8635.9696039298. The cubic root of 74579971 is about 420.9276002356.

The spelling of 74579971 in words is "seventy-four million, five hundred seventy-nine thousand, nine hundred seventy-one".