412649 has 4 divisors (see below), whose sum is σ = 414036. Its totient is φ = 411264.

The previous prime is 412639. The next prime is 412651. The reversal of 412649 is 946214.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 102400 + 310249 = 320^2 + 557^2 .

It is a cyclic number.

It is not a de Polignac number, because 412649 - 2¹² = 408553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (412609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44 + ... + 909.

It is an arithmetic number, because the mean of its divisors is an integer number (103509).

2⁴¹²⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

412649 is a deficient number, since it is larger than the sum of its proper divisors (1387).

412649 is an equidigital number, since it uses as much as digits as its factorization.

412649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386.

The product of its digits is 1728, while the sum is 26.

The square root of 412649 is about 642.3776148030. The cubic root of 412649 is about 74.4492394789.

The spelling of 412649 in words is "four hundred twelve thousand, six hundred forty-nine".