345577849 has 2 divisors, whose sum is σ = 345577850. Its totient is φ = 345577848.

The previous prime is 345577823. The next prime is 345577901. The reversal of 345577849 is 948775543.

It is an a-pointer prime, because the next prime (345577901) can be obtained adding 345577849 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 233111824 + 112466025 = 15268^2 + 10605^2 .

It is a cyclic number.

It is not a de Polignac number, because 345577849 - 2¹¹ = 345575801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345577796 and 345577805.

It is not a weakly prime, because it can be changed into another prime (345577049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172788924 + 172788925.

It is an arithmetic number, because the mean of its divisors is an integer number (172788925).

Almost surely, 2^345577849 is an apocalyptic number.

It is an amenable number.

345577849 is a deficient number, since it is larger than the sum of its proper divisors (1).

345577849 is an equidigital number, since it uses as much as digits as its factorization.

345577849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4233600, while the sum is 52.

The square root of 345577849 is about 18589.7242852066. The cubic root of 345577849 is about 701.7492638144.

The spelling of 345577849 in words is "three hundred forty-five million, five hundred seventy-seven thousand, eight hundred forty-nine".