90343087 has 2 divisors, whose sum is σ = 90343088. Its totient is φ = 90343086.

The previous prime is 90343079. The next prime is 90343139. The reversal of 90343087 is 78034309.

It is a weak prime.

It is an emirp because it is prime and its reverse (78034309) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90343087 - 2³ = 90343079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90343007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45171543 + 45171544.

It is an arithmetic number, because the mean of its divisors is an integer number (45171544).

Almost surely, 2^90343087 is an apocalyptic number.

90343087 is a deficient number, since it is larger than the sum of its proper divisors (1).

90343087 is an equidigital number, since it uses as much as digits as its factorization.

90343087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 90343087 is about 9504.8980531092. The cubic root of 90343087 is about 448.7092013715.

It can be divided in two parts, 9034 and 3087, that added together give a palindrome (12121).

The spelling of 90343087 in words is "ninety million, three hundred forty-three thousand, eighty-seven".