791673605 has 4 divisors (see below), whose sum is σ = 950008332. Its totient is φ = 633338880.

The previous prime is 791673587. The next prime is 791673613. The reversal of 791673605 is 506376197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 506376197 = 1951 ⋅259547.

It can be written as a sum of positive squares in 2 ways, for example, as 267355201 + 524318404 = 16351^2 + 22898^2 .

It is not a de Polignac number, because 791673605 - 2¹² = 791669509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79167356 + ... + 79167365.

It is an arithmetic number, because the mean of its divisors is an integer number (237502083).

Almost surely, 2^791673605 is an apocalyptic number.

It is an amenable number.

791673605 is a deficient number, since it is larger than the sum of its proper divisors (158334727).

791673605 is a wasteful number, since it uses less digits than its factorization.

791673605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158334726.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 791673605 is about 28136.6949907056. The cubic root of 791673605 is about 925.0858863520.

The spelling of 791673605 in words is "seven hundred ninety-one million, six hundred seventy-three thousand, six hundred five".