412409661 has 4 divisors (see below), whose sum is σ = 549879552. Its totient is φ = 274939772.

The previous prime is 412409651. The next prime is 412409663. The reversal of 412409661 is 166904214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 412409661 - 2⁵ = 412409629 is a prime.

It is a super-2 number, since 2×412409661² = 340163456972269842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412409663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68734941 + ... + 68734946.

It is an arithmetic number, because the mean of its divisors is an integer number (137469888).

Almost surely, 2^412409661 is an apocalyptic number.

It is an amenable number.

412409661 is a deficient number, since it is larger than the sum of its proper divisors (137469891).

412409661 is a wasteful number, since it uses less digits than its factorization.

412409661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137469890.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 412409661 is about 20307.8718973702. The cubic root of 412409661 is about 744.3484302044.

The spelling of 412409661 in words is "four hundred twelve million, four hundred nine thousand, six hundred sixty-one".