397067760 has 60 divisors (see below), whose sum is σ = 1333488312. Its totient is φ = 105884544.

The previous prime is 397067711. The next prime is 397067761. The reversal of 397067760 is 67760793.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397067761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275022 + ... + 276461.

Almost surely, 2^397067760 is an apocalyptic number.

397067760 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

397067760 is an abundant number, since it is smaller than the sum of its proper divisors (936420552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397067760 is a wasteful number, since it uses less digits than its factorization.

397067760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551502 (or 551493 counting only the distinct ones).

The product of its (nonzero) digits is 333396, while the sum is 45.

The square root of 397067760 is about 19926.5591610795. The cubic root of 397067760 is about 735.0014716061.

The spelling of 397067760 in words is "three hundred ninety-seven million, sixty-seven thousand, seven hundred sixty".