412739819 has 2 divisors, whose sum is σ = 412739820. Its totient is φ = 412739818.

The previous prime is 412739809. The next prime is 412739863. The reversal of 412739819 is 918937214.

It is an a-pointer prime, because the next prime (412739863) can be obtained adding 412739819 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-412739819 is a prime.

It is a super-2 number, since 2×412739819² = 340708316376305522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 412739819.

It is not a weakly prime, because it can be changed into another prime (412739809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206369909 + 206369910.

It is an arithmetic number, because the mean of its divisors is an integer number (206369910).

Almost surely, 2^412739819 is an apocalyptic number.

412739819 is a deficient number, since it is larger than the sum of its proper divisors (1).

412739819 is an equidigital number, since it uses as much as digits as its factorization.

412739819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The square root of 412739819 is about 20315.9990893877. Note that the first 3 decimals coincide. The cubic root of 412739819 is about 744.5470086743.

The spelling of 412739819 in words is "four hundred twelve million, seven hundred thirty-nine thousand, eight hundred nineteen".