90911740 has 12 divisors (see below), whose sum is σ = 190914696. Its totient is φ = 36364688.

The previous prime is 90911729. The next prime is 90911741. The reversal of 90911740 is 4711909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90911741) 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 3 ways as a sum of consecutive naturals, for example, 2272774 + ... + 2272813.

It is an arithmetic number, because the mean of its divisors is an integer number (15909558).

Almost surely, 2^90911740 is an apocalyptic number.

It is an amenable number.

90911740 is an abundant number, since it is smaller than the sum of its proper divisors (100002956).

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

90911740 is a wasteful number, since it uses less digits than its factorization.

90911740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545596 (or 4545594 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 90911740 is about 9534.7648109432. The cubic root of 90911740 is about 449.6486805253.

The spelling of 90911740 in words is "ninety million, nine hundred eleven thousand, seven hundred forty".