806487444 has 72 divisors (see below), whose sum is σ = 2405032448. Its totient is φ = 222989760.

The previous prime is 806487431. The next prime is 806487449. The reversal of 806487444 is 444784608.

It is a self number, because there is not a number n which added to its sum of digits gives 806487444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806487449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43807 + ... + 59430.

Almost surely, 2^806487444 is an apocalyptic number.

806487444 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

806487444 is an abundant number, since it is smaller than the sum of its proper divisors (1598545004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

806487444 is a wasteful number, since it uses less digits than its factorization.

806487444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103285 (or 103280 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 45.

The square root of 806487444 is about 28398.7225769048. The cubic root of 806487444 is about 930.8203514254.

The spelling of 806487444 in words is "eight hundred six million, four hundred eighty-seven thousand, four hundred forty-four".