345177777 has 16 divisors (see below), whose sum is σ = 542953472. Its totient is φ = 190881360.

The previous prime is 345177757. The next prime is 345177779. The reversal of 345177777 is 777771543.

It is not a de Polignac number, because 345177777 - 2⁶ = 345177713 is a prime.

It is a Duffinian number.

345177777 is a modest number, since divided by 77777 gives 3451 as remainder.

It is not an unprimeable number, because it can be changed into a prime (345177779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264463 + ... + 265764.

It is an arithmetic number, because the mean of its divisors is an integer number (33934592).

Almost surely, 2^345177777 is an apocalyptic number.

It is an amenable number.

345177777 is a deficient number, since it is larger than the sum of its proper divisors (197775695).

345177777 is a wasteful number, since it uses less digits than its factorization.

345177777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530268.

The product of its digits is 1008420, while the sum is 48.

The square root of 345177777 is about 18578.9606006364. The cubic root of 345177777 is about 701.4783565571.

The spelling of 345177777 in words is "three hundred forty-five million, one hundred seventy-seven thousand, seven hundred seventy-seven".