90307648 has 28 divisors (see below), whose sum is σ = 180228240. Its totient is φ = 44895872.

The previous prime is 90307603. The next prime is 90307649. The reversal of 90307648 is 84670309.

It is not an unprimeable number, because it can be changed into a prime (90307649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7515 + ... + 15397.

Almost surely, 2^90307648 is an apocalyptic number.

It is an amenable number.

90307648 is a deficient number, since it is larger than the sum of its proper divisors (89920592).

90307648 is a wasteful number, since it uses less digits than its factorization.

90307648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8074 (or 8064 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 90307648 is about 9503.0336209023. The cubic root of 90307648 is about 448.6505217845.

The spelling of 90307648 in words is "ninety million, three hundred seven thousand, six hundred forty-eight".