97810405 has 16 divisors (see below), whose sum is σ = 146335104. Its totient is φ = 60972480.

The previous prime is 97810393. The next prime is 97810457. The reversal of 97810405 is 50401879.

It is a happy number.

It is not a de Polignac number, because 97810405 - 2⁵ = 97810373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126642 + ... + 127411.

It is an arithmetic number, because the mean of its divisors is an integer number (9145944).

Almost surely, 2^97810405 is an apocalyptic number.

It is an amenable number.

97810405 is a deficient number, since it is larger than the sum of its proper divisors (48524699).

97810405 is a wasteful number, since it uses less digits than its factorization.

97810405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254076.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 97810405 is about 9889.9143070099. The cubic root of 97810405 is about 460.7461190099.

The spelling of 97810405 in words is "ninety-seven million, eight hundred ten thousand, four hundred five".