400584903847 has 2 divisors, whose sum is σ = 400584903848. Its totient is φ = 400584903846.

The previous prime is 400584903749. The next prime is 400584903853. The reversal of 400584903847 is 748309485004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400584903847 - 2²³ = 400576515239 is a prime.

It is a super-2 number, since 2×400584903847² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400584903794 and 400584903803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400584903947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200292451923 + 200292451924.

It is an arithmetic number, because the mean of its divisors is an integer number (200292451924).

Almost surely, 2^400584903847 is an apocalyptic number.

400584903847 is a deficient number, since it is larger than the sum of its proper divisors (1).

400584903847 is an equidigital number, since it uses as much as digits as its factorization.

400584903847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 400584903847 in words is "four hundred billion, five hundred eighty-four million, nine hundred three thousand, eight hundred forty-seven".