74085971 has 2 divisors, whose sum is σ = 74085972. Its totient is φ = 74085970.

The previous prime is 74085941. The next prime is 74085989. The reversal of 74085971 is 17958047.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74085971 - 2¹⁴ = 74069587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74085911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37042985 + 37042986.

It is an arithmetic number, because the mean of its divisors is an integer number (37042986).

Almost surely, 2^74085971 is an apocalyptic number.

74085971 is a deficient number, since it is larger than the sum of its proper divisors (1).

74085971 is an equidigital number, since it uses as much as digits as its factorization.

74085971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 74085971 is about 8607.3207794296. The cubic root of 74085971 is about 419.9961658758.

The spelling of 74085971 in words is "seventy-four million, eighty-five thousand, nine hundred seventy-one".