80000749 has 2 divisors, whose sum is σ = 80000750. Its totient is φ = 80000748.

The previous prime is 80000737. The next prime is 80000761. The reversal of 80000749 is 94700008.

It is a balanced prime because it is at equal distance from previous prime (80000737) and next prime (80000761).

It can be written as a sum of positive squares in only one way, i.e., 76825225 + 3175524 = 8765^2 + 1782^2 .

It is a cyclic number.

It is not a de Polignac number, because 80000749 - 2¹¹ = 79998701 is a prime.

It is a super-2 number, since 2×80000749² = 12800239681122002, which contains 22 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 (80000719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40000374 + 40000375.

It is an arithmetic number, because the mean of its divisors is an integer number (40000375).

Almost surely, 2^80000749 is an apocalyptic number.

It is an amenable number.

80000749 is a deficient number, since it is larger than the sum of its proper divisors (1).

80000749 is an equidigital number, since it uses as much as digits as its factorization.

80000749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 80000749 is about 8944.3137802740. The cubic root of 80000749 is about 430.8882827285. Note that the first 3 decimals are identical.

The spelling of 80000749 in words is "eighty million, seven hundred forty-nine", and thus it is an aban number.