900397 has 2 divisors, whose sum is σ = 900398. Its totient is φ = 900396.

The previous prime is 900349. The next prime is 900409. The reversal of 900397 is 793009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527076 + 373321 = 726^2 + 611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-900397 is a prime.

900397 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (900307) 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, 450198 + 450199.

It is an arithmetic number, because the mean of its divisors is an integer number (450199).

2⁹⁰⁰³⁹⁷ is an apocalyptic number.

It is an amenable number.

900397 is a deficient number, since it is larger than the sum of its proper divisors (1).

900397 is an equidigital number, since it uses as much as digits as its factorization.

900397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701, while the sum is 28.

The square root of 900397 is about 948.8925123532. The cubic root of 900397 is about 96.5631326435.

The spelling of 900397 in words is "nine hundred thousand, three hundred ninety-seven".