397538105 has 8 divisors (see below), whose sum is σ = 477271872. Its totient is φ = 317879728.

The previous prime is 397538093. The next prime is 397538111. The reversal of 397538105 is 501835793.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 397538105 - 2²⁰ = 396489529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6509 + ... + 28938.

It is an arithmetic number, because the mean of its divisors is an integer number (59658984).

Almost surely, 2^397538105 is an apocalyptic number.

It is an amenable number.

397538105 is a deficient number, since it is larger than the sum of its proper divisors (79733767).

397538105 is a wasteful number, since it uses less digits than its factorization.

397538105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37695.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 397538105 is about 19938.3576304569. The cubic root of 397538105 is about 735.2915714252.

The spelling of 397538105 in words is "three hundred ninety-seven million, five hundred thirty-eight thousand, one hundred five".