1954803379 has 2 divisors, whose sum is σ = 1954803380. Its totient is φ = 1954803378.

The previous prime is 1954803359. The next prime is 1954803397. The reversal of 1954803379 is 9733084591.

Together with next prime (1954803397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1954803379 - 2¹⁵ = 1954770611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1954803359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977401689 + 977401690.

It is an arithmetic number, because the mean of its divisors is an integer number (977401690).

Almost surely, 2^1954803379 is an apocalyptic number.

1954803379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1954803379 is an equidigital number, since it uses as much as digits as its factorization.

1954803379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 1954803379 is about 44213.1584372797. The cubic root of 1954803379 is about 1250.3579516734.

The spelling of 1954803379 in words is "one billion, nine hundred fifty-four million, eight hundred three thousand, three hundred seventy-nine".