76431347 has 2 divisors, whose sum is σ = 76431348. Its totient is φ = 76431346.

The previous prime is 76431343. The next prime is 76431361. The reversal of 76431347 is 74313467.

It is a weak prime.

It is an emirp because it is prime and its reverse (74313467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76431347 - 2² = 76431343 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76431343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38215673 + 38215674.

It is an arithmetic number, because the mean of its divisors is an integer number (38215674).

Almost surely, 2^76431347 is an apocalyptic number.

76431347 is a deficient number, since it is larger than the sum of its proper divisors (1).

76431347 is an equidigital number, since it uses as much as digits as its factorization.

76431347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 35.

The square root of 76431347 is about 8742.5023305687. The cubic root of 76431347 is about 424.3822110546.

The spelling of 76431347 in words is "seventy-six million, four hundred thirty-one thousand, three hundred forty-seven".