1979075573 has 4 divisors (see below), whose sum is σ = 2032564140. Its totient is φ = 1925587008.

The previous prime is 1979075563. The next prime is 1979075591. The reversal of 1979075573 is 3755709791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3755709791 = 71 ⋅52897321.

It can be written as a sum of positive squares in 2 ways, for example, as 1189353169 + 789722404 = 34487^2 + 28102^2 .

It is a cyclic number.

It is not a de Polignac number, because 1979075573 - 2¹⁸ = 1978813429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979075533) 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, 26744228 + ... + 26744301.

It is an arithmetic number, because the mean of its divisors is an integer number (508141035).

Almost surely, 2^1979075573 is an apocalyptic number.

It is an amenable number.

1979075573 is a deficient number, since it is larger than the sum of its proper divisors (53488567).

1979075573 is an equidigital number, since it uses as much as digits as its factorization.

1979075573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53488566.

The product of its (nonzero) digits is 2083725, while the sum is 53.

The square root of 1979075573 is about 44486.8022339210. The cubic root of 1979075573 is about 1255.5117827191.

The spelling of 1979075573 in words is "one billion, nine hundred seventy-nine million, seventy-five thousand, five hundred seventy-three".