345274747 has 2 divisors, whose sum is σ = 345274748. Its totient is φ = 345274746.

The previous prime is 345274717. The next prime is 345274819. The reversal of 345274747 is 747472543.

It is a weak prime.

It is an emirp because it is prime and its reverse (747472543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345274747 - 2⁷ = 345274619 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (345274717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172637373 + 172637374.

It is an arithmetic number, because the mean of its divisors is an integer number (172637374).

Almost surely, 2^345274747 is an apocalyptic number.

345274747 is a deficient number, since it is larger than the sum of its proper divisors (1).

345274747 is an equidigital number, since it uses as much as digits as its factorization.

345274747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 658560, while the sum is 43.

The square root of 345274747 is about 18581.5700897421. The cubic root of 345274747 is about 701.5440386413.

The spelling of 345274747 in words is "three hundred forty-five million, two hundred seventy-four thousand, seven hundred forty-seven".