74734871 has 2 divisors, whose sum is σ = 74734872. Its totient is φ = 74734870.

The previous prime is 74734867. The next prime is 74734901. The reversal of 74734871 is 17843747.

It is a weak prime.

It is an emirp because it is prime and its reverse (17843747) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74734871 - 2² = 74734867 is a prime.

It is a Sophie Germain prime.

It is equal to p_4379675 and since 74734871 and 4379675 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74734171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37367435 + 37367436.

It is an arithmetic number, because the mean of its divisors is an integer number (37367436).

Almost surely, 2^74734871 is an apocalyptic number.

74734871 is a deficient number, since it is larger than the sum of its proper divisors (1).

74734871 is an equidigital number, since it uses as much as digits as its factorization.

74734871 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 74734871 is about 8644.9332559598. The cubic root of 74734871 is about 421.2188160311.

The spelling of 74734871 in words is "seventy-four million, seven hundred thirty-four thousand, eight hundred seventy-one".