385386437 has 2 divisors, whose sum is σ = 385386438. Its totient is φ = 385386436.

The previous prime is 385386433. The next prime is 385386457. The reversal of 385386437 is 734683583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 321162241 + 64224196 = 17921^2 + 8014^2 .

It is a cyclic number.

It is not a de Polignac number, because 385386437 - 2² = 385386433 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 385386391 and 385386400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385386433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192693218 + 192693219.

It is an arithmetic number, because the mean of its divisors is an integer number (192693219).

Almost surely, 2^385386437 is an apocalyptic number.

It is an amenable number.

385386437 is a deficient number, since it is larger than the sum of its proper divisors (1).

385386437 is an equidigital number, since it uses as much as digits as its factorization.

385386437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 47.

The square root of 385386437 is about 19631.2617271535. The cubic root of 385386437 is about 727.7219514641.

The spelling of 385386437 in words is "three hundred eighty-five million, three hundred eighty-six thousand, four hundred thirty-seven".