90603197 has 4 divisors (see below), whose sum is σ = 91316736. Its totient is φ = 89889660.

The previous prime is 90603167. The next prime is 90603199. The reversal of 90603197 is 79130609.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79130609 = 1951 ⋅40559.

It is a cyclic number.

It is not a de Polignac number, because 90603197 - 2⁶ = 90603133 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 (90603199) 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, 356579 + ... + 356832.

It is an arithmetic number, because the mean of its divisors is an integer number (22829184).

Almost surely, 2^90603197 is an apocalyptic number.

It is an amenable number.

90603197 is a deficient number, since it is larger than the sum of its proper divisors (713539).

90603197 is a wasteful number, since it uses less digits than its factorization.

90603197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713538.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 90603197 is about 9518.5711637829. The cubic root of 90603197 is about 449.1394202976.

The spelling of 90603197 in words is "ninety million, six hundred three thousand, one hundred ninety-seven".