400598053 has 2 divisors, whose sum is σ = 400598054. Its totient is φ = 400598052.

The previous prime is 400597993. The next prime is 400598063. The reversal of 400598053 is 350895004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 336245569 + 64352484 = 18337^2 + 8022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400598053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400598063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200299026 + 200299027.

It is an arithmetic number, because the mean of its divisors is an integer number (200299027).

Almost surely, 2^400598053 is an apocalyptic number.

It is an amenable number.

400598053 is a deficient number, since it is larger than the sum of its proper divisors (1).

400598053 is an equidigital number, since it uses as much as digits as its factorization.

400598053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 400598053 is about 20014.9457406209. The cubic root of 400598053 is about 737.1733245535.

The spelling of 400598053 in words is "four hundred million, five hundred ninety-eight thousand, fifty-three".