400893347 has 2 divisors, whose sum is σ = 400893348. Its totient is φ = 400893346.

The previous prime is 400893323. The next prime is 400893397. The reversal of 400893347 is 743398004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400893347 - 2¹⁴ = 400876963 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400893347.

It is not a weakly prime, because it can be changed into another prime (400893307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200446673 + 200446674.

It is an arithmetic number, because the mean of its divisors is an integer number (200446674).

Almost surely, 2^400893347 is an apocalyptic number.

400893347 is a deficient number, since it is larger than the sum of its proper divisors (1).

400893347 is an equidigital number, since it uses as much as digits as its factorization.

400893347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 400893347 is about 20022.3212190795. The cubic root of 400893347 is about 737.3544116331.

The spelling of 400893347 in words is "four hundred million, eight hundred ninety-three thousand, three hundred forty-seven".