90748655 has 16 divisors (see below), whose sum is σ = 114952800. Its totient is φ = 68584320.

The previous prime is 90748649. The next prime is 90748657. The reversal of 90748655 is 55684709.

It is not a de Polignac number, because 90748655 - 2⁶ = 90748591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90748657) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 38861 + ... + 41129.

It is an arithmetic number, because the mean of its divisors is an integer number (7184550).

Almost surely, 2^90748655 is an apocalyptic number.

90748655 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

90748655 is a deficient number, since it is larger than the sum of its proper divisors (24204145).

90748655 is a wasteful number, since it uses less digits than its factorization.

90748655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2714.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 90748655 is about 9526.2088471752. The cubic root of 90748655 is about 449.3796472561.

The spelling of 90748655 in words is "ninety million, seven hundred forty-eight thousand, six hundred fifty-five".