397244101 has 4 divisors (see below), whose sum is σ = 397284832. Its totient is φ = 397203372.

The previous prime is 397244087. The next prime is 397244119. The reversal of 397244101 is 101442793.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397244101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397244131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3910 + ... + 28456.

It is an arithmetic number, because the mean of its divisors is an integer number (99321208).

Almost surely, 2^397244101 is an apocalyptic number.

It is an amenable number.

397244101 is a deficient number, since it is larger than the sum of its proper divisors (40731).

397244101 is a wasteful number, since it uses less digits than its factorization.

397244101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40730.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 397244101 is about 19930.9834428711. The cubic root of 397244101 is about 735.1102621999.

Adding to 397244101 its reverse (101442793), we get a palindrome (498686894).

The spelling of 397244101 in words is "three hundred ninety-seven million, two hundred forty-four thousand, one hundred one".