814649 has 8 divisors (see below), whose sum is σ = 917760. Its totient is φ = 716400.

The previous prime is 814643. The next prime is 814687. The reversal of 814649 is 946418.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 814649 - 2⁴ = 814633 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (814643) 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 7 ways as a sum of consecutive naturals, for example, 854 + ... + 1535.

It is an arithmetic number, because the mean of its divisors is an integer number (114720).

2⁸¹⁴⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

814649 is a deficient number, since it is larger than the sum of its proper divisors (103111).

814649 is a wasteful number, since it uses less digits than its factorization.

814649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431.

The product of its digits is 6912, while the sum is 32.

The square root of 814649 is about 902.5790824077. The cubic root of 814649 is about 93.3949748698.

Subtracting 814649 from its reverse (946418), we obtain a square (131769 = 363²).

The spelling of 814649 in words is "eight hundred fourteen thousand, six hundred forty-nine".