900961 has 4 divisors (see below), whose sum is σ = 948400. Its totient is φ = 853524.

The previous prime is 900959. The next prime is 900971. The reversal of 900961 is 169009.

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.

It is a cyclic number.

It is not a de Polignac number, because 900961 - 2¹ = 900959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (900931) 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 in 3 ways as a sum of consecutive naturals, for example, 23691 + ... + 23728.

It is an arithmetic number, because the mean of its divisors is an integer number (237100).

2⁹⁰⁰⁹⁶¹ is an apocalyptic number.

It is an amenable number.

900961 is a deficient number, since it is larger than the sum of its proper divisors (47439).

900961 is a wasteful number, since it uses less digits than its factorization.

900961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47438.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 900961 is about 949.1896543895. The cubic root of 900961 is about 96.5832905070.

It can be divided in two parts, 900 and 961, that multiplied together give a square (864900 = 930²).

The spelling of 900961 in words is "nine hundred thousand, nine hundred sixty-one".