400596593 has 2 divisors, whose sum is σ = 400596594. Its totient is φ = 400596592.

The previous prime is 400596587. The next prime is 400596613. The reversal of 400596593 is 395695004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239382784 + 161213809 = 15472^2 + 12697^2 .

It is a cyclic number.

It is not a de Polignac number, because 400596593 - 2¹⁸ = 400334449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400596593.

It is not a weakly prime, because it can be changed into another prime (400596503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200298296 + 200298297.

It is an arithmetic number, because the mean of its divisors is an integer number (200298297).

Almost surely, 2^400596593 is an apocalyptic number.

It is an amenable number.

400596593 is a deficient number, since it is larger than the sum of its proper divisors (1).

400596593 is an equidigital number, since it uses as much as digits as its factorization.

400596593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 400596593 is about 20014.9092678433. The cubic root of 400596593 is about 737.1724289972.

The spelling of 400596593 in words is "four hundred million, five hundred ninety-six thousand, five hundred ninety-three".