90008357 has 2 divisors, whose sum is σ = 90008358. Its totient is φ = 90008356.

The previous prime is 90008351. The next prime is 90008371. The reversal of 90008357 is 75380009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51394561 + 38613796 = 7169^2 + 6214^2 .

It is an emirp because it is prime and its reverse (75380009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90008357 - 2⁴ = 90008341 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90008351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45004178 + 45004179.

It is an arithmetic number, because the mean of its divisors is an integer number (45004179).

Almost surely, 2^90008357 is an apocalyptic number.

It is an amenable number.

90008357 is a deficient number, since it is larger than the sum of its proper divisors (1).

90008357 is an equidigital number, since it uses as much as digits as its factorization.

90008357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 90008357 is about 9487.2734228544. The cubic root of 90008357 is about 448.1543450040.

The spelling of 90008357 in words is "ninety million, eight thousand, three hundred fifty-seven".