385613447 has 2 divisors, whose sum is σ = 385613448. Its totient is φ = 385613446.

The previous prime is 385613443. The next prime is 385613453. The reversal of 385613447 is 744316583.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 385613447 - 2² = 385613443 is a prime.

It is a super-4 number, since 4×385613447⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385613443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192806723 + 192806724.

It is an arithmetic number, because the mean of its divisors is an integer number (192806724).

Almost surely, 2^385613447 is an apocalyptic number.

385613447 is a deficient number, since it is larger than the sum of its proper divisors (1).

385613447 is an equidigital number, since it uses as much as digits as its factorization.

385613447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 41.

The square root of 385613447 is about 19637.0427254208. The cubic root of 385613447 is about 727.8648104391.

The spelling of 385613447 in words is "three hundred eighty-five million, six hundred thirteen thousand, four hundred forty-seven".