90748785 has 48 divisors (see below), whose sum is σ = 153829440. Its totient is φ = 45657600.

The previous prime is 90748781. The next prime is 90748787. The reversal of 90748785 is 58784709.

It is not a de Polignac number, because 90748785 - 2² = 90748781 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90748781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1487655 + ... + 1487715.

It is an arithmetic number, because the mean of its divisors is an integer number (3204780).

Almost surely, 2^90748785 is an apocalyptic number.

It is an amenable number.

90748785 is a deficient number, since it is larger than the sum of its proper divisors (63080655).

90748785 is a wasteful number, since it uses less digits than its factorization.

90748785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 90748785 is about 9526.2156704538. The cubic root of 90748785 is about 449.3798618390.

The spelling of 90748785 in words is "ninety million, seven hundred forty-eight thousand, seven hundred eighty-five".