345934777 has 2 divisors, whose sum is σ = 345934778. Its totient is φ = 345934776.

The previous prime is 345934769. The next prime is 345934811. The reversal of 345934777 is 777439543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268828816 + 77105961 = 16396^2 + 8781^2 .

It is a cyclic number.

It is not a de Polignac number, because 345934777 - 2³ = 345934769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345934777.

It is not a weakly prime, because it can be changed into another prime (345931777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172967388 + 172967389.

It is an arithmetic number, because the mean of its divisors is an integer number (172967389).

Almost surely, 2^345934777 is an apocalyptic number.

It is an amenable number.

345934777 is a deficient number, since it is larger than the sum of its proper divisors (1).

345934777 is an equidigital number, since it uses as much as digits as its factorization.

345934777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2222640, while the sum is 49.

The square root of 345934777 is about 18599.3219500067. The cubic root of 345934777 is about 701.9907798509.

The spelling of 345934777 in words is "three hundred forty-five million, nine hundred thirty-four thousand, seven hundred seventy-seven".