345502947 has 4 divisors (see below), whose sum is σ = 460670600. Its totient is φ = 230335296.

The previous prime is 345502939. The next prime is 345502957. The reversal of 345502947 is 749205543.

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

It is not a de Polignac number, because 345502947 - 2³ = 345502939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345502907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57583822 + ... + 57583827.

It is an arithmetic number, because the mean of its divisors is an integer number (115167650).

Almost surely, 2^345502947 is an apocalyptic number.

345502947 is a deficient number, since it is larger than the sum of its proper divisors (115167653).

345502947 is a wasteful number, since it uses less digits than its factorization.

345502947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115167652.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 345502947 is about 18587.7095684218. The cubic root of 345502947 is about 701.6985601196.

The spelling of 345502947 in words is "three hundred forty-five million, five hundred two thousand, nine hundred forty-seven".