345641747 has 4 divisors (see below), whose sum is σ = 377063736. Its totient is φ = 314219760.

The previous prime is 345641729. The next prime is 345641761. The reversal of 345641747 is 747146543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345641747 - 2⁶ = 345641683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345641347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15710978 + ... + 15710999.

It is an arithmetic number, because the mean of its divisors is an integer number (94265934).

Almost surely, 2^345641747 is an apocalyptic number.

345641747 is a deficient number, since it is larger than the sum of its proper divisors (31421989).

345641747 is a wasteful number, since it uses less digits than its factorization.

345641747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31421988.

The product of its digits is 282240, while the sum is 41.

The square root of 345641747 is about 18591.4428434159. The cubic root of 345641747 is about 701.7925127391.

The spelling of 345641747 in words is "three hundred forty-five million, six hundred forty-one thousand, seven hundred forty-seven".