90323012 has 12 divisors (see below), whose sum is σ = 170224236. Its totient is φ = 41687520.

The previous prime is 90323011. The next prime is 90323021. The reversal of 90323012 is 21032309.

It can be written as a sum of positive squares in 2 ways, for example, as 10863616 + 79459396 = 3296^2 + 8914^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (90323011) 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, 868439 + ... + 868542.

It is an arithmetic number, because the mean of its divisors is an integer number (14185353).

Almost surely, 2^90323012 is an apocalyptic number.

It is an amenable number.

90323012 is a deficient number, since it is larger than the sum of its proper divisors (79901224).

90323012 is a wasteful number, since it uses less digits than its factorization.

90323012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736998 (or 1736996 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 90323012 is about 9503.8419599655. The cubic root of 90323012 is about 448.6759632463.

The spelling of 90323012 in words is "ninety million, three hundred twenty-three thousand, twelve".