814749481 has 8 divisors (see below), whose sum is σ = 1002768704. Its totient is φ = 644636880.

The previous prime is 814749479. The next prime is 814749503. The reversal of 814749481 is 184947418.

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 814749481 - 2¹ = 814749479 is a prime.

It is a super-2 number, since 2×814749481² = 1327633433579538722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (814749421) 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, 4476555 + ... + 4476736.

It is an arithmetic number, because the mean of its divisors is an integer number (125346088).

Almost surely, 2^814749481 is an apocalyptic number.

It is an amenable number.

814749481 is a deficient number, since it is larger than the sum of its proper divisors (188019223).

814749481 is a wasteful number, since it uses less digits than its factorization.

814749481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8953311.

The product of its digits is 258048, while the sum is 46.

The square root of 814749481 is about 28543.8168610997. The cubic root of 814749481 is about 933.9881457441.

The spelling of 814749481 in words is "eight hundred fourteen million, seven hundred forty-nine thousand, four hundred eighty-one".