90648759 has 8 divisors (see below), whose sum is σ = 123436800. Its totient is φ = 59146616.

The previous prime is 90648749. The next prime is 90648781. The reversal of 90648759 is 95784609.

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

It is a cyclic number.

It is not a de Polignac number, because 90648759 - 2¹¹ = 90646711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90648749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321309 + ... + 321590.

It is an arithmetic number, because the mean of its divisors is an integer number (15429600).

Almost surely, 2^90648759 is an apocalyptic number.

90648759 is a deficient number, since it is larger than the sum of its proper divisors (32788041).

90648759 is a wasteful number, since it uses less digits than its factorization.

90648759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642949.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 90648759 is about 9520.9641843670. The cubic root of 90648759 is about 449.2146945399.

The spelling of 90648759 in words is "ninety million, six hundred forty-eight thousand, seven hundred fifty-nine".