404473487 has 8 divisors (see below), whose sum is σ = 452006352. Its totient is φ = 358734400.

The previous prime is 404473483. The next prime is 404473507. The reversal of 404473487 is 784374404.

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 404473487 - 2² = 404473483 is a prime.

It is a super-3 number, since 3×404473487³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404473483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447968 + ... + 448869.

It is an arithmetic number, because the mean of its divisors is an integer number (56500794).

Almost surely, 2^404473487 is an apocalyptic number.

404473487 is a deficient number, since it is larger than the sum of its proper divisors (47532865).

404473487 is a wasteful number, since it uses less digits than its factorization.

404473487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896889.

The product of its (nonzero) digits is 301056, while the sum is 41.

The square root of 404473487 is about 20111.5262225421. The cubic root of 404473487 is about 739.5428677760.

It can be divided in two parts, 40447 and 3487, that added together give a palindrome (43934).

The spelling of 404473487 in words is "four hundred four million, four hundred seventy-three thousand, four hundred eighty-seven".