75478471 has 2 divisors, whose sum is σ = 75478472. Its totient is φ = 75478470.

The previous prime is 75478427. The next prime is 75478477. The reversal of 75478471 is 17487457.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75478471 is a prime.

It is a super-3 number, since 3×75478471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75478477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37739235 + 37739236.

It is an arithmetic number, because the mean of its divisors is an integer number (37739236).

Almost surely, 2^75478471 is an apocalyptic number.

75478471 is a deficient number, since it is larger than the sum of its proper divisors (1).

75478471 is an equidigital number, since it uses as much as digits as its factorization.

75478471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 219520, while the sum is 43.

The square root of 75478471 is about 8687.8346554248. The cubic root of 75478471 is about 422.6112280243.

The spelling of 75478471 in words is "seventy-five million, four hundred seventy-eight thousand, four hundred seventy-one".