1374747889 has 2 divisors, whose sum is σ = 1374747890. Its totient is φ = 1374747888.

The previous prime is 1374747887. The next prime is 1374747893. The reversal of 1374747889 is 9887474731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1190250000 + 184497889 = 34500^2 + 13583^2 .

It is a cyclic number.

It is not a de Polignac number, because 1374747889 - 2¹ = 1374747887 is a prime.

Together with 1374747887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1374747887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687373944 + 687373945.

It is an arithmetic number, because the mean of its divisors is an integer number (687373945).

Almost surely, 2^1374747889 is an apocalyptic number.

It is an amenable number.

1374747889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374747889 is an equidigital number, since it uses as much as digits as its factorization.

1374747889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9483264, while the sum is 58.

The square root of 1374747889 is about 37077.5928156076. The cubic root of 1374747889 is about 1111.9220787251.

The spelling of 1374747889 in words is "one billion, three hundred seventy-four million, seven hundred forty-seven thousand, eight hundred eighty-nine".