345047667 has 16 divisors (see below), whose sum is σ = 464758272. Its totient is φ = 227697120.

The previous prime is 345047663. The next prime is 345047669. The reversal of 345047667 is 766740543.

It is a happy number.

It is not a de Polignac number, because 345047667 - 2² = 345047663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345047663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123318 + ... + 126084.

It is an arithmetic number, because the mean of its divisors is an integer number (29047392).

Almost surely, 2^345047667 is an apocalyptic number.

345047667 is a deficient number, since it is larger than the sum of its proper divisors (119710605).

345047667 is a wasteful number, since it uses less digits than its factorization.

345047667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178.

The product of its (nonzero) digits is 423360, while the sum is 42.

The square root of 345047667 is about 18575.4587291943. The cubic root of 345047667 is about 701.3902079517.

It can be divided in two parts, 3450476 and 67, that added together give a palindrome (3450543).

The spelling of 345047667 in words is "three hundred forty-five million, forty-seven thousand, six hundred sixty-seven".