397369545 has 16 divisors (see below), whose sum is σ = 638271360. Its totient is φ = 211103744.

The previous prime is 397369507. The next prime is 397369549. The reversal of 397369545 is 545963793.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 397369545 - 2⁶ = 397369481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397369549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47685 + ... + 55394.

It is an arithmetic number, because the mean of its divisors is an integer number (39891960).

Almost surely, 2^397369545 is an apocalyptic number.

It is an amenable number.

397369545 is a deficient number, since it is larger than the sum of its proper divisors (240901815).

397369545 is a wasteful number, since it uses less digits than its factorization.

397369545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103344.

The product of its digits is 3061800, while the sum is 51.

The square root of 397369545 is about 19934.1301540850. The cubic root of 397369545 is about 735.1876331551.

The spelling of 397369545 in words is "three hundred ninety-seven million, three hundred sixty-nine thousand, five hundred forty-five".