387426229 has 2 divisors, whose sum is σ = 387426230. Its totient is φ = 387426228.

The previous prime is 387426211. The next prime is 387426233. The reversal of 387426229 is 922624783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221712100 + 165714129 = 14890^2 + 12873^2 .

It is a cyclic number.

It is not a de Polignac number, because 387426229 - 2¹⁷ = 387295157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387426239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193713114 + 193713115.

It is an arithmetic number, because the mean of its divisors is an integer number (193713115).

Almost surely, 2^387426229 is an apocalyptic number.

It is an amenable number.

387426229 is a deficient number, since it is larger than the sum of its proper divisors (1).

387426229 is an equidigital number, since it uses as much as digits as its factorization.

387426229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The square root of 387426229 is about 19683.1458105660. The cubic root of 387426229 is about 729.0036002564.

It can be divided in two parts, 3874 and 26229, that added together give a palindrome (30103).

The spelling of 387426229 in words is "three hundred eighty-seven million, four hundred twenty-six thousand, two hundred twenty-nine".