397798101 has 32 divisors (see below), whose sum is σ = 599808000. Its totient is φ = 260520624.

The previous prime is 397798099. The next prime is 397798109. The reversal of 397798101 is 101897793.

It is not a de Polignac number, because 397798101 - 2¹ = 397798099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397798109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 603310 + ... + 603968.

It is an arithmetic number, because the mean of its divisors is an integer number (18744000).

Almost surely, 2^397798101 is an apocalyptic number.

It is an amenable number.

397798101 is a deficient number, since it is larger than the sum of its proper divisors (202009899).

397798101 is a wasteful number, since it uses less digits than its factorization.

397798101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 45.

The square root of 397798101 is about 19944.8765601595. The cubic root of 397798101 is about 735.4518338030.

The spelling of 397798101 in words is "three hundred ninety-seven million, seven hundred ninety-eight thousand, one hundred one".