397627735 has 16 divisors (see below), whose sum is σ = 483942816. Its totient is φ = 313602048.

The previous prime is 397627733. The next prime is 397627753. The reversal of 397627735 is 537726793.

It is a cyclic number.

It is not a de Polignac number, because 397627735 - 2¹ = 397627733 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 (397627733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135807 + ... + 138703.

It is an arithmetic number, because the mean of its divisors is an integer number (30246426).

Almost surely, 2^397627735 is an apocalyptic number.

397627735 is a deficient number, since it is larger than the sum of its proper divisors (86315081).

397627735 is a wasteful number, since it uses less digits than its factorization.

397627735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282.

The product of its digits is 1666980, while the sum is 49.

The square root of 397627735 is about 19940.6051813881. The cubic root of 397627735 is about 735.3468275381.

The spelling of 397627735 in words is "three hundred ninety-seven million, six hundred twenty-seven thousand, seven hundred thirty-five".