90630000 has 300 divisors, whose sum is σ = 339922440. Its totient is φ = 22464000.

The previous prime is 90629993. The next prime is 90630013. The reversal of 90630000 is 3609.

It is a tau number, because it is divible by the number of its divisors (300).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1709974 + ... + 1710026.

Almost surely, 2^90630000 is an apocalyptic number.

90630000 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90630000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169961220).

90630000 is an abundant number, since it is smaller than the sum of its proper divisors (249292440).

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

90630000 is a wasteful number, since it uses less digits than its factorization.

90630000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 90630000 is about 9519.9789915735. The cubic root of 90630000 is about 449.1837053317.

Adding to 90630000 its reverse (3609), we get a palindrome (90633609).

The spelling of 90630000 in words is "ninety million, six hundred thirty thousand".