97814905 has 4 divisors (see below), whose sum is σ = 117377892. Its totient is φ = 78251920.

The previous prime is 97814891. The next prime is 97814921. The reversal of 97814905 is 50941879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50941879 = 937 ⋅54367.

It can be written as a sum of positive squares in 2 ways, for example, as 73342096 + 24472809 = 8564^2 + 4947^2 .

It is not a de Polignac number, because 97814905 - 2⁷ = 97814777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9781486 + ... + 9781495.

It is an arithmetic number, because the mean of its divisors is an integer number (29344473).

Almost surely, 2^97814905 is an apocalyptic number.

It is an amenable number.

97814905 is a deficient number, since it is larger than the sum of its proper divisors (19562987).

97814905 is a wasteful number, since it uses less digits than its factorization.

97814905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19562986.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 97814905 is about 9890.1418088923. The cubic root of 97814905 is about 460.7531848081.

The spelling of 97814905 in words is "ninety-seven million, eight hundred fourteen thousand, nine hundred five".