76471393 has 2 divisors, whose sum is σ = 76471394. Its totient is φ = 76471392.

The previous prime is 76471391. The next prime is 76471427. The reversal of 76471393 is 39317467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58553104 + 17918289 = 7652^2 + 4233^2 .

It is a cyclic number.

It is not a de Polignac number, because 76471393 - 2¹ = 76471391 is a prime.

Together with 76471391, it forms a pair of twin primes.

It is equal to p_4475497 and since 76471393 and 4475497 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (76471391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38235696 + 38235697.

It is an arithmetic number, because the mean of its divisors is an integer number (38235697).

Almost surely, 2^76471393 is an apocalyptic number.

It is an amenable number.

76471393 is a deficient number, since it is larger than the sum of its proper divisors (1).

76471393 is an equidigital number, since it uses as much as digits as its factorization.

76471393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 40.

The square root of 76471393 is about 8744.7923360135. The cubic root of 76471393 is about 424.4563160889.

The spelling of 76471393 in words is "seventy-six million, four hundred seventy-one thousand, three hundred ninety-three".