386621047 has 2 divisors, whose sum is σ = 386621048. Its totient is φ = 386621046.

The previous prime is 386621017. The next prime is 386621051. The reversal of 386621047 is 740126683.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-386621047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 386620997 and 386621015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386621017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193310523 + 193310524.

It is an arithmetic number, because the mean of its divisors is an integer number (193310524).

Almost surely, 2^386621047 is an apocalyptic number.

386621047 is a deficient number, since it is larger than the sum of its proper divisors (1).

386621047 is an equidigital number, since it uses as much as digits as its factorization.

386621047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 386621047 is about 19662.6815821240. The cubic root of 386621047 is about 728.4982243159.

The spelling of 386621047 in words is "three hundred eighty-six million, six hundred twenty-one thousand, forty-seven".