90870026 has 8 divisors (see below), whose sum is σ = 146790084. Its totient is φ = 41940000.

The previous prime is 90870019. The next prime is 90870041. The reversal of 90870026 is 62007809.

It can be written as a sum of positive squares in 2 ways, for example, as 86025625 + 4844401 = 9275^2 + 2201^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 90869974 and 90870001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1747475 + ... + 1747526.

Almost surely, 2^90870026 is an apocalyptic number.

90870026 is a deficient number, since it is larger than the sum of its proper divisors (55920058).

90870026 is a wasteful number, since it uses less digits than its factorization.

90870026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3495016.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 90870026 is about 9532.5770912173. The cubic root of 90870026 is about 449.5798976429.

The spelling of 90870026 in words is "ninety million, eight hundred seventy thousand, twenty-six".