900897 has 4 divisors (see below), whose sum is σ = 1201200. Its totient is φ = 600596.

The previous prime is 900869. The next prime is 900917. The reversal of 900897 is 798009.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 798009 = 3 ⋅266003.

It is a cyclic number.

It is not a de Polignac number, because 900897 - 2¹⁹ = 376609 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (900817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150147 + ... + 150152.

It is an arithmetic number, because the mean of its divisors is an integer number (300300).

2⁹⁰⁰⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

900897 is a deficient number, since it is larger than the sum of its proper divisors (300303).

900897 is a wasteful number, since it uses less digits than its factorization.

900897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300302.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 900897 is about 949.1559408232. The cubic root of 900897 is about 96.5810035131.

The spelling of 900897 in words is "nine hundred thousand, eight hundred ninety-seven".