90063880 has 32 divisors (see below), whose sum is σ = 207590040. Its totient is φ = 35146240.

The previous prime is 90063863. The next prime is 90063889. The reversal of 90063880 is 8836009.

It can be written as a sum of positive squares in 4 ways, for example, as 41705764 + 48358116 = 6458^2 + 6954^2 .

It is a super-2 number, since 2×90063880² = 16223004961308800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90063889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25819 + ... + 29098.

Almost surely, 2^90063880 is an apocalyptic number.

It is an amenable number.

90063880 is an abundant number, since it is smaller than the sum of its proper divisors (117526160).

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

90063880 is a wasteful number, since it uses less digits than its factorization.

90063880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54969 (or 54965 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 90063880 is about 9490.1991549177. The cubic root of 90063880 is about 448.2464762972.

Adding to 90063880 its reverse (8836009), we get a palindrome (98899889).

The spelling of 90063880 in words is "ninety million, sixty-three thousand, eight hundred eighty".