90911630 has 32 divisors (see below), whose sum is σ = 169675776. Its totient is φ = 35047584.

The previous prime is 90911621. The next prime is 90911633. The reversal of 90911630 is 3611909.

It is a junction number, because it is equal to n+sod(n) for n = 90911593 and 90911602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90911633) 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, 30047 + ... + 32933.

It is an arithmetic number, because the mean of its divisors is an integer number (5302368).

Almost surely, 2^90911630 is an apocalyptic number.

90911630 is a deficient number, since it is larger than the sum of its proper divisors (78764146).

90911630 is a wasteful number, since it uses less digits than its factorization.

90911630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 90911630 is about 9534.7590425768. The cubic root of 90911630 is about 449.6484991722.

The spelling of 90911630 in words is "ninety million, nine hundred eleven thousand, six hundred thirty".