400848587 has 2 divisors, whose sum is σ = 400848588. Its totient is φ = 400848586.

The previous prime is 400848563. The next prime is 400848589. The reversal of 400848587 is 785848004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400848587 - 2¹⁴ = 400832203 is a prime.

Together with 400848589, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (400848589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200424293 + 200424294.

It is an arithmetic number, because the mean of its divisors is an integer number (200424294).

Almost surely, 2^400848587 is an apocalyptic number.

400848587 is a deficient number, since it is larger than the sum of its proper divisors (1).

400848587 is an equidigital number, since it uses as much as digits as its factorization.

400848587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 286720, while the sum is 44.

The square root of 400848587 is about 20021.2034353582. The cubic root of 400848587 is about 737.3269685803.

The spelling of 400848587 in words is "four hundred million, eight hundred forty-eight thousand, five hundred eighty-seven".