90376393 has 2 divisors, whose sum is σ = 90376394. Its totient is φ = 90376392.

The previous prime is 90376379. The next prime is 90376417. The reversal of 90376393 is 39367309.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65804544 + 24571849 = 8112^2 + 4957^2 .

It is an emirp because it is prime and its reverse (39367309) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90376393 - 2¹⁷ = 90245321 is a prime.

It is not a weakly prime, because it can be changed into another prime (90376313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45188196 + 45188197.

It is an arithmetic number, because the mean of its divisors is an integer number (45188197).

Almost surely, 2^90376393 is an apocalyptic number.

It is an amenable number.

90376393 is a deficient number, since it is larger than the sum of its proper divisors (1).

90376393 is an equidigital number, since it uses as much as digits as its factorization.

90376393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 40.

The square root of 90376393 is about 9506.6499357029. The cubic root of 90376393 is about 448.7643351695.

The spelling of 90376393 in words is "ninety million, three hundred seventy-six thousand, three hundred ninety-three".