74471471 has 2 divisors, whose sum is σ = 74471472. Its totient is φ = 74471470.

The previous prime is 74471437. The next prime is 74471477. The reversal of 74471471 is 17417447.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74471471 is a prime.

It is a super-3 number, since 3×74471471³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74471477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37235735 + 37235736.

It is an arithmetic number, because the mean of its divisors is an integer number (37235736).

Almost surely, 2^74471471 is an apocalyptic number.

74471471 is a deficient number, since it is larger than the sum of its proper divisors (1).

74471471 is an equidigital number, since it uses as much as digits as its factorization.

74471471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21952, while the sum is 35.

The square root of 74471471 is about 8629.6854519733. The cubic root of 74471471 is about 420.7233773530.

The spelling of 74471471 in words is "seventy-four million, four hundred seventy-one thousand, four hundred seventy-one".