1960398779 has 4 divisors (see below), whose sum is σ = 1960628880. Its totient is φ = 1960168680.

The previous prime is 1960398757. The next prime is 1960398799. The reversal of 1960398779 is 9778930691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9778930691 = 461 ⋅21212431.

It is a cyclic number.

It is not a de Polignac number, because 1960398779 - 2²⁰ = 1959350203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1960398719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101759 + ... + 119480.

It is an arithmetic number, because the mean of its divisors is an integer number (490157220).

Almost surely, 2^1960398779 is an apocalyptic number.

1960398779 is a deficient number, since it is larger than the sum of its proper divisors (230101).

1960398779 is an equidigital number, since it uses as much as digits as its factorization.

1960398779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230100.

The product of its (nonzero) digits is 5143824, while the sum is 59.

The square root of 1960398779 is about 44276.3907630240. The cubic root of 1960398779 is about 1251.5498171792.

The spelling of 1960398779 in words is "one billion, nine hundred sixty million, three hundred ninety-eight thousand, seven hundred seventy-nine".