90001006 has 8 divisors (see below), whose sum is σ = 135240480. Its totient is φ = 44920848.

The previous prime is 90001003. The next prime is 90001013. The reversal of 90001006 is 60010009.

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

It is a super-3 number, since 3×90001006³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90001003) 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, 38406 + ... + 40681.

It is an arithmetic number, because the mean of its divisors is an integer number (16905060).

Almost surely, 2^90001006 is an apocalyptic number.

90001006 is a deficient number, since it is larger than the sum of its proper divisors (45239474).

90001006 is a wasteful number, since it uses less digits than its factorization.

90001006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79658.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 90001006 is about 9486.8860012124. The cubic root of 90001006 is about 448.1421443877.

The spelling of 90001006 in words is "ninety million, one thousand, six".