406898876947 has 4 divisors (see below), whose sum is σ = 407727592056. Its totient is φ = 406070161840.

The previous prime is 406898876941. The next prime is 406898876957. The reversal of 406898876947 is 749678898604.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 406898876947 - 2⁷ = 406898876819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406898876941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414356818 + ... + 414357799.

It is an arithmetic number, because the mean of its divisors is an integer number (101931898014).

Almost surely, 2^406898876947 is an apocalyptic number.

406898876947 is a deficient number, since it is larger than the sum of its proper divisors (828715109).

406898876947 is an equidigital number, since it uses as much as digits as its factorization.

406898876947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828715108.

The product of its (nonzero) digits is 1170505728, while the sum is 76.

The spelling of 406898876947 in words is "four hundred six billion, eight hundred ninety-eight million, eight hundred seventy-six thousand, nine hundred forty-seven".