345331747 has 2 divisors, whose sum is σ = 345331748. Its totient is φ = 345331746.

The previous prime is 345331733. The next prime is 345331751. The reversal of 345331747 is 747133543.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345331747 is a prime.

It is equal to p_18566092 and since 345331747 and 18566092 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (345331757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172665873 + 172665874.

It is an arithmetic number, because the mean of its divisors is an integer number (172665874).

Almost surely, 2^345331747 is an apocalyptic number.

345331747 is a deficient number, since it is larger than the sum of its proper divisors (1).

345331747 is an equidigital number, since it uses as much as digits as its factorization.

345331747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 37.

The square root of 345331747 is about 18583.1038042626. The cubic root of 345331747 is about 701.5826415320.

The spelling of 345331747 in words is "three hundred forty-five million, three hundred thirty-one thousand, seven hundred forty-seven".