89661503 has 2 divisors, whose sum is σ = 89661504. Its totient is φ = 89661502.

The previous prime is 89661491. The next prime is 89661511. The reversal of 89661503 is 30516698.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89661503 - 2⁴ = 89661487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89861503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44830751 + 44830752.

It is an arithmetic number, because the mean of its divisors is an integer number (44830752).

Almost surely, 2^89661503 is an apocalyptic number.

89661503 is a deficient number, since it is larger than the sum of its proper divisors (1).

89661503 is an equidigital number, since it uses as much as digits as its factorization.

89661503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 89661503 is about 9468.9758157892. The cubic root of 89661503 is about 447.5779384241.

The spelling of 89661503 in words is "eighty-nine million, six hundred sixty-one thousand, five hundred three".