90630630 has 32 divisors (see below), whose sum is σ = 241682400. Its totient is φ = 24168096.

The previous prime is 90630613. The next prime is 90630637. The reversal of 90630630 is 3603609.

It is a super-2 number, since 2×90630630² = 16427822188393800, which contains 22 as substring.

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 = 90630594 and 90630603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90630637) 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, 167565 + ... + 168104.

It is an arithmetic number, because the mean of its divisors is an integer number (7552575).

Almost surely, 2^90630630 is an apocalyptic number.

90630630 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

90630630 is an abundant number, since it is smaller than the sum of its proper divisors (151051770).

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

90630630 is a wasteful number, since it uses less digits than its factorization.

90630630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335685 (or 335679 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 90630630 is about 9520.0120798243. The cubic root of 90630630 is about 449.1847461389.

The spelling of 90630630 in words is "ninety million, six hundred thirty thousand, six hundred thirty".