408787047 has 16 divisors (see below), whose sum is σ = 615540960. Its totient is φ = 268056000.

The previous prime is 408787037. The next prime is 408787069. The reversal of 408787047 is 740787804.

It is not a de Polignac number, because 408787047 - 2⁴ = 408787031 is a prime.

It is a super-3 number, since 3×408787047³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 408786993 and 408787011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408787037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122454 + ... + 125747.

It is an arithmetic number, because the mean of its divisors is an integer number (38471310).

Almost surely, 2^408787047 is an apocalyptic number.

408787047 is a deficient number, since it is larger than the sum of its proper divisors (206753913).

408787047 is a wasteful number, since it uses less digits than its factorization.

408787047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248271 (or 248265 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 45.

The square root of 408787047 is about 20218.4828065807. The cubic root of 408787047 is about 742.1625606781.

The spelling of 408787047 in words is "four hundred eight million, seven hundred eighty-seven thousand, forty-seven".