90348728 has 16 divisors (see below), whose sum is σ = 169602000. Its totient is φ = 45121536.

The previous prime is 90348691. The next prime is 90348757. The reversal of 90348728 is 82784309.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1208 + ... + 13496.

It is an arithmetic number, because the mean of its divisors is an integer number (10600125).

Almost surely, 2^90348728 is an apocalyptic number.

It is an amenable number.

90348728 is a deficient number, since it is larger than the sum of its proper divisors (79253272).

90348728 is a wasteful number, since it uses less digits than its factorization.

90348728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13214 (or 13210 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 90348728 is about 9505.1947902187. The cubic root of 90348728 is about 448.7185402743.

The spelling of 90348728 in words is "ninety million, three hundred forty-eight thousand, seven hundred twenty-eight".