890730 has 32 divisors (see below), whose sum is σ = 2376000. Its totient is φ = 237456.

The previous prime is 890717. The next prime is 890737. The reversal of 890730 is 37098.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 890694 and 890703.

It is not an unprimeable number, because it can be changed into a prime (890737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1380 + ... + 1919.

It is an arithmetic number, because the mean of its divisors is an integer number (74250).

2⁸⁹⁰⁷³⁰ is an apocalyptic number.

890730 is an abundant number, since it is smaller than the sum of its proper divisors (1485270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

890730 is a wasteful number, since it uses less digits than its factorization.

890730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3315 (or 3309 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 890730 is about 943.7849331283. The cubic root of 890730 is about 96.2163091169.

The spelling of 890730 in words is "eight hundred ninety thousand, seven hundred thirty".