1045977389 has 2 divisors, whose sum is σ = 1045977390. Its totient is φ = 1045977388.

The previous prime is 1045977349. The next prime is 1045977391. The reversal of 1045977389 is 9837795401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1027202500 + 18774889 = 32050^2 + 4333^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045977389 - 2¹² = 1045973293 is a prime.

It is a Sophie Germain prime.

Together with 1045977391, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1045977389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1045977319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522988694 + 522988695.

It is an arithmetic number, because the mean of its divisors is an integer number (522988695).

Almost surely, 2^1045977389 is an apocalyptic number.

It is an amenable number.

1045977389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045977389 is an equidigital number, since it uses as much as digits as its factorization.

1045977389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The square root of 1045977389 is about 32341.5736939315. The cubic root of 1045977389 is about 1015.0967379305.

The spelling of 1045977389 in words is "one billion, forty-five million, nine hundred seventy-seven thousand, three hundred eighty-nine".