97815603 has 16 divisors (see below), whose sum is σ = 138309120. Its totient is φ = 61278336.

The previous prime is 97815593. The next prime is 97815617. The reversal of 97815603 is 30651879.

It is not a de Polignac number, because 97815603 - 2⁴ = 97815587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97815623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45826 + ... + 47912.

It is an arithmetic number, because the mean of its divisors is an integer number (8644320).

Almost surely, 2^97815603 is an apocalyptic number.

97815603 is a deficient number, since it is larger than the sum of its proper divisors (40493517).

97815603 is a wasteful number, since it uses less digits than its factorization.

97815603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3026.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 97815603 is about 9890.1770964933. The cubic root of 97815603 is about 460.7542807725.

The spelling of 97815603 in words is "ninety-seven million, eight hundred fifteen thousand, six hundred three".