345553779 has 8 divisors (see below), whose sum is σ = 484987840. Its totient is φ = 218244456.

The previous prime is 345553751. The next prime is 345553787. The reversal of 345553779 is 977355543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 345553779 - 2⁹ = 345553267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345553709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3031117 + ... + 3031230.

It is an arithmetic number, because the mean of its divisors is an integer number (60623480).

Almost surely, 2^345553779 is an apocalyptic number.

345553779 is a deficient number, since it is larger than the sum of its proper divisors (139434061).

345553779 is a wasteful number, since it uses less digits than its factorization.

345553779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6062369.

The product of its digits is 1984500, while the sum is 48.

The square root of 345553779 is about 18589.0768732608. The cubic root of 345553779 is about 701.7329708171.

The spelling of 345553779 in words is "three hundred forty-five million, five hundred fifty-three thousand, seven hundred seventy-nine".