814370749 has 2 divisors, whose sum is σ = 814370750. Its totient is φ = 814370748.

The previous prime is 814370731. The next prime is 814370783. The reversal of 814370749 is 947073418.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 810540900 + 3829849 = 28470^2 + 1957^2 .

It is a cyclic number.

It is not a de Polignac number, because 814370749 - 2¹³ = 814362557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814370149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407185374 + 407185375.

It is an arithmetic number, because the mean of its divisors is an integer number (407185375).

Almost surely, 2^814370749 is an apocalyptic number.

It is an amenable number.

814370749 is a deficient number, since it is larger than the sum of its proper divisors (1).

814370749 is an equidigital number, since it uses as much as digits as its factorization.

814370749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 814370749 is about 28537.1818685728. The cubic root of 814370749 is about 933.8434034927.

The spelling of 814370749 in words is "eight hundred fourteen million, three hundred seventy thousand, seven hundred forty-nine".