412815861 has 12 divisors (see below), whose sum is σ = 606396960. Its totient is φ = 270545640.

The previous prime is 412815859. The next prime is 412815881. The reversal of 412815861 is 168518214.

It is not a de Polignac number, because 412815861 - 2¹ = 412815859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412815881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 388185 + ... + 389246.

It is an arithmetic number, because the mean of its divisors is an integer number (50533080).

Almost surely, 2^412815861 is an apocalyptic number.

It is an amenable number.

412815861 is a deficient number, since it is larger than the sum of its proper divisors (193581099).

412815861 is a wasteful number, since it uses less digits than its factorization.

412815861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777496 (or 777493 counting only the distinct ones).

The product of its digits is 15360, while the sum is 36.

The square root of 412815861 is about 20317.8704838868. The cubic root of 412815861 is about 744.5927302681.

The spelling of 412815861 in words is "four hundred twelve million, eight hundred fifteen thousand, eight hundred sixty-one".