90147828 has 12 divisors (see below), whose sum is σ = 210344960. Its totient is φ = 30049272.

The previous prime is 90147817. The next prime is 90147847. The reversal of 90147828 is 82874109.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3756148 + ... + 3756171.

Almost surely, 2^90147828 is an apocalyptic number.

It is an amenable number.

90147828 is an abundant number, since it is smaller than the sum of its proper divisors (120197132).

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

90147828 is a wasteful number, since it uses less digits than its factorization.

90147828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7512326 (or 7512324 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 90147828 is about 9494.6210034946. The cubic root of 90147828 is about 448.3857023290.

The spelling of 90147828 in words is "ninety million, one hundred forty-seven thousand, eight hundred twenty-eight".