400594937 has 2 divisors, whose sum is σ = 400594938. Its totient is φ = 400594936.

The previous prime is 400594889. The next prime is 400594973. The reversal of 400594937 is 739495004.

Together with next prime (400594973) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 340439401 + 60155536 = 18451^2 + 7756^2 .

It is a cyclic number.

It is not a de Polignac number, because 400594937 - 2¹⁰ = 400593913 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 400594894 and 400594903.

It is not a weakly prime, because it can be changed into another prime (400594237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200297468 + 200297469.

It is an arithmetic number, because the mean of its divisors is an integer number (200297469).

Almost surely, 2^400594937 is an apocalyptic number.

It is an amenable number.

400594937 is a deficient number, since it is larger than the sum of its proper divisors (1).

400594937 is an equidigital number, since it uses as much as digits as its factorization.

400594937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 400594937 is about 20014.8678986398. The cubic root of 400594937 is about 737.1714132129.

The spelling of 400594937 in words is "four hundred million, five hundred ninety-four thousand, nine hundred thirty-seven".