412643887 has 2 divisors, whose sum is σ = 412643888. Its totient is φ = 412643886.

The previous prime is 412643797. The next prime is 412643899. The reversal of 412643887 is 788346214.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 412643887 - 2¹¹ = 412641839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412643087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206321943 + 206321944.

It is an arithmetic number, because the mean of its divisors is an integer number (206321944).

Almost surely, 2^412643887 is an apocalyptic number.

412643887 is a deficient number, since it is larger than the sum of its proper divisors (1).

412643887 is an equidigital number, since it uses as much as digits as its factorization.

412643887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 43.

The square root of 412643887 is about 20313.6379558168. The cubic root of 412643887 is about 744.4893198553.

The spelling of 412643887 in words is "four hundred twelve million, six hundred forty-three thousand, eight hundred eighty-seven".