90923503 has 4 divisors (see below), whose sum is σ = 99189288. Its totient is φ = 82657720.

The previous prime is 90923501. The next prime is 90923507. The reversal of 90923503 is 30532909.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30532909 = 11 ⋅2775719.

It is a cyclic number.

It is not a de Polignac number, because 90923503 - 2¹ = 90923501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90923501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4132876 + ... + 4132897.

It is an arithmetic number, because the mean of its divisors is an integer number (24797322).

Almost surely, 2^90923503 is an apocalyptic number.

90923503 is a deficient number, since it is larger than the sum of its proper divisors (8265785).

90923503 is a wasteful number, since it uses less digits than its factorization.

90923503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8265784.

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 90923503 is about 9535.3816389277. The cubic root of 90923503 is about 449.6680729210.

The spelling of 90923503 in words is "ninety million, nine hundred twenty-three thousand, five hundred three".