108278397 has 32 divisors (see below), whose sum is σ = 170956800. Its totient is φ = 67535856.

The previous prime is 108278383. The next prime is 108278413. The reversal of 108278397 is 793872801.

It is not a de Polignac number, because 108278397 - 2⁶ = 108278333 is a prime.

It is a super-2 number, since 2×108278397² = 23448422513779218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108278377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41308 + ... + 43850.

It is an arithmetic number, because the mean of its divisors is an integer number (5342400).

Almost surely, 2^108278397 is an apocalyptic number.

It is an amenable number.

108278397 is a deficient number, since it is larger than the sum of its proper divisors (62678403).

108278397 is a wasteful number, since it uses less digits than its factorization.

108278397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2654 (or 2648 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 108278397 is about 10405.6906065864. The cubic root of 108278397 is about 476.6291568008.

The spelling of 108278397 in words is "one hundred eight million, two hundred seventy-eight thousand, three hundred ninety-seven".