80612747 has 2 divisors, whose sum is σ = 80612748. Its totient is φ = 80612746.

The previous prime is 80612743. The next prime is 80612867. The reversal of 80612747 is 74721608.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80612747 - 2² = 80612743 is a prime.

It is not a weakly prime, because it can be changed into another prime (80612743) 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, 40306373 + 40306374.

It is an arithmetic number, because the mean of its divisors is an integer number (40306374).

Almost surely, 2^80612747 is an apocalyptic number.

80612747 is a deficient number, since it is larger than the sum of its proper divisors (1).

80612747 is an equidigital number, since it uses as much as digits as its factorization.

80612747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 80612747 is about 8978.4601686481. The cubic root of 80612747 is about 431.9842440384.

The spelling of 80612747 in words is "eighty million, six hundred twelve thousand, seven hundred forty-seven".