675400447 has 2 divisors, whose sum is σ = 675400448. Its totient is φ = 675400446.

The previous prime is 675400403. The next prime is 675400457. The reversal of 675400447 is 744004576.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-675400447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (675400457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337700223 + 337700224.

It is an arithmetic number, because the mean of its divisors is an integer number (337700224).

Almost surely, 2^675400447 is an apocalyptic number.

675400447 is a deficient number, since it is larger than the sum of its proper divisors (1).

675400447 is an equidigital number, since it uses as much as digits as its factorization.

675400447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 675400447 is about 25988.4675769850. The cubic root of 675400447 is about 877.3787559316.

The spelling of 675400447 in words is "six hundred seventy-five million, four hundred thousand, four hundred forty-seven".