412403681 has 2 divisors, whose sum is σ = 412403682. Its totient is φ = 412403680.

The previous prime is 412403647. The next prime is 412403689. The reversal of 412403681 is 186304214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 408403681 + 4000000 = 20209^2 + 2000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-412403681 is a prime.

It is a super-2 number, since 2×412403681² = 340153592204699522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (412403689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206201840 + 206201841.

It is an arithmetic number, because the mean of its divisors is an integer number (206201841).

Almost surely, 2^412403681 is an apocalyptic number.

It is an amenable number.

412403681 is a deficient number, since it is larger than the sum of its proper divisors (1).

412403681 is an equidigital number, since it uses as much as digits as its factorization.

412403681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 412403681 is about 20307.7246632901. The cubic root of 412403681 is about 744.3448324669.

Adding to 412403681 its reverse (186304214), we get a palindrome (598707895).

The spelling of 412403681 in words is "four hundred twelve million, four hundred three thousand, six hundred eighty-one".