98603591 has 4 divisors (see below), whose sum is σ = 101784384. Its totient is φ = 95422800.

The previous prime is 98603563. The next prime is 98603611. The reversal of 98603591 is 19530689.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19530689 = 19 ⋅1027931.

It is a cyclic number.

It is not a de Polignac number, because 98603591 - 2¹⁴ = 98587207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98603191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1590350 + ... + 1590411.

It is an arithmetic number, because the mean of its divisors is an integer number (25446096).

Almost surely, 2^98603591 is an apocalyptic number.

98603591 is a deficient number, since it is larger than the sum of its proper divisors (3180793).

98603591 is a wasteful number, since it uses less digits than its factorization.

98603591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3180792.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 98603591 is about 9929.9340884016. The cubic root of 98603591 is about 461.9882292435.

The spelling of 98603591 in words is "ninety-eight million, six hundred three thousand, five hundred ninety-one".