90849907 has 2 divisors, whose sum is σ = 90849908. Its totient is φ = 90849906.

The previous prime is 90849881. The next prime is 90849937. The reversal of 90849907 is 70994809.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90849907 - 2¹¹ = 90847859 is a prime.

It is not a weakly prime, because it can be changed into another prime (90849937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45424953 + 45424954.

It is an arithmetic number, because the mean of its divisors is an integer number (45424954).

Almost surely, 2^90849907 is an apocalyptic number.

90849907 is a deficient number, since it is larger than the sum of its proper divisors (1).

90849907 is an equidigital number, since it uses as much as digits as its factorization.

90849907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 90849907 is about 9531.5217567815. The cubic root of 90849907 is about 449.5467155770.

The spelling of 90849907 in words is "ninety million, eight hundred forty-nine thousand, nine hundred seven".