900730 has 8 divisors (see below), whose sum is σ = 1621332. Its totient is φ = 360288.

The previous prime is 900719. The next prime is 900737. The reversal of 900730 is 37009.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 844561 + 56169 = 919^2 + 237^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×900730² = 1622629065800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 900698 and 900707.

It is not an unprimeable number, because it can be changed into a prime (900737) 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, 45027 + ... + 45046.

2⁹⁰⁰⁷³⁰ is an apocalyptic number.

900730 is a deficient number, since it is larger than the sum of its proper divisors (720602).

900730 is a wasteful number, since it uses less digits than its factorization.

900730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90080.

The product of its (nonzero) digits is 189, while the sum is 19.

The square root of 900730 is about 949.0679638466. The cubic root of 900730 is about 96.5750353783.

Adding to 900730 its reverse (37009), we get a palindrome (937739).

The spelling of 900730 in words is "nine hundred thousand, seven hundred thirty".