3345445447 has 2 divisors, whose sum is σ = 3345445448. Its totient is φ = 3345445446.

The previous prime is 3345445429. The next prime is 3345445483. The reversal of 3345445447 is 7445445433.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3345445447 is a prime.

It is a super-2 number, since 2×3345445447² = 22384010477706059618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3345445417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1672722723 + 1672722724.

It is an arithmetic number, because the mean of its divisors is an integer number (1672722724).

Almost surely, 2^3345445447 is an apocalyptic number.

3345445447 is a deficient number, since it is larger than the sum of its proper divisors (1).

3345445447 is an equidigital number, since it uses as much as digits as its factorization.

3345445447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1612800, while the sum is 43.

The square root of 3345445447 is about 57839.8257863905. The cubic root of 3345445447 is about 1495.6087045986.

The spelling of 3345445447 in words is "three billion, three hundred forty-five million, four hundred forty-five thousand, four hundred forty-seven".