1427016749 has 2 divisors, whose sum is σ = 1427016750. Its totient is φ = 1427016748.

The previous prime is 1427016713. The next prime is 1427016763. The reversal of 1427016749 is 9476107241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 918514249 + 508502500 = 30307^2 + 22550^2 .

It is a cyclic number.

It is not a de Polignac number, because 1427016749 - 2²⁴ = 1410239533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1427019749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713508374 + 713508375.

It is an arithmetic number, because the mean of its divisors is an integer number (713508375).

Almost surely, 2^1427016749 is an apocalyptic number.

It is an amenable number.

1427016749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427016749 is an equidigital number, since it uses as much as digits as its factorization.

1427016749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 1427016749 is about 37775.8752248045. The cubic root of 1427016749 is about 1125.8391760799.

The spelling of 1427016749 in words is "one billion, four hundred twenty-seven million, sixteen thousand, seven hundred forty-nine".