80373749 has 2 divisors, whose sum is σ = 80373750. Its totient is φ = 80373748.

The previous prime is 80373737. The next prime is 80373757. The reversal of 80373749 is 94737308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79744900 + 628849 = 8930^2 + 793^2 .

It is a cyclic number.

It is not a de Polignac number, because 80373749 - 2²⁰ = 79325173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80373719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40186874 + 40186875.

It is an arithmetic number, because the mean of its divisors is an integer number (40186875).

Almost surely, 2^80373749 is an apocalyptic number.

It is an amenable number.

80373749 is a deficient number, since it is larger than the sum of its proper divisors (1).

80373749 is an equidigital number, since it uses as much as digits as its factorization.

80373749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 80373749 is about 8965.1407685546. The cubic root of 80373749 is about 431.5569105896.

The spelling of 80373749 in words is "eighty million, three hundred seventy-three thousand, seven hundred forty-nine".