900340173 has 6 divisors (see below), whose sum is σ = 1300491374. Its totient is φ = 600226776.

The previous prime is 900340163. The next prime is 900340183. The reversal of 900340173 is 371043009.

It is an interprime number because it is at equal distance from previous prime (900340163) and next prime (900340183).

It can be written as a sum of positive squares in only one way, i.e., 872493444 + 27846729 = 29538^2 + 5277^2 .

It is not a de Polignac number, because 900340173 - 2⁵ = 900340141 is a prime.

It is a super-2 number, since 2×900340173² = 1621224854235339858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900340153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50018890 + ... + 50018907.

Almost surely, 2^900340173 is an apocalyptic number.

It is an amenable number.

900340173 is a deficient number, since it is larger than the sum of its proper divisors (400151201).

900340173 is a wasteful number, since it uses less digits than its factorization.

900340173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100037803 (or 100037800 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 900340173 is about 30005.6690143713. The cubic root of 900340173 is about 965.6110112907.

The spelling of 900340173 in words is "nine hundred million, three hundred forty thousand, one hundred seventy-three".