97808535 has 96 divisors (see below), whose sum is σ = 197323776. Its totient is φ = 44721600.

The previous prime is 97808533. The next prime is 97808537. The reversal of 97808535 is 53580879.

It is an interprime number because it is at equal distance from previous prime (97808533) and next prime (97808537).

It is not a de Polignac number, because 97808535 - 2¹ = 97808533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97808533) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1377550 + ... + 1377620.

It is an arithmetic number, because the mean of its divisors is an integer number (2055456).

Almost surely, 2^97808535 is an apocalyptic number.

97808535 is an abundant number, since it is smaller than the sum of its proper divisors (99515241).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97808535 is a wasteful number, since it uses less digits than its factorization.

97808535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 97808535 is about 9889.8197657996. The cubic root of 97808535 is about 460.7431827145.

The spelling of 97808535 in words is "ninety-seven million, eight hundred eight thousand, five hundred thirty-five".