90006723 has 6 divisors (see below), whose sum is σ = 130009724. Its totient is φ = 60004476.

The previous prime is 90006703. The next prime is 90006779. The reversal of 90006723 is 32760009.

It is not a de Polignac number, because 90006723 - 2¹⁸ = 89744579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90006703) 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, 5000365 + ... + 5000382.

Almost surely, 2^90006723 is an apocalyptic number.

90006723 is a deficient number, since it is larger than the sum of its proper divisors (40003001).

90006723 is a wasteful number, since it uses less digits than its factorization.

90006723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000753 (or 10000750 counting only the distinct ones).

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

The square root of 90006723 is about 9487.1873071000. The cubic root of 90006723 is about 448.1516330757.

The spelling of 90006723 in words is "ninety million, six thousand, seven hundred twenty-three".