397522067 has 4 divisors (see below), whose sum is σ = 420905736. Its totient is φ = 374138400.

The previous prime is 397522061. The next prime is 397522079. The reversal of 397522067 is 760225793.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 397522067 - 2¹² = 397517971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397522061) 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, 11691809 + ... + 11691842.

It is an arithmetic number, because the mean of its divisors is an integer number (105226434).

Almost surely, 2^397522067 is an apocalyptic number.

397522067 is a deficient number, since it is larger than the sum of its proper divisors (23383669).

397522067 is a wasteful number, since it uses less digits than its factorization.

397522067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23383668.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 397522067 is about 19937.9554368044. The cubic root of 397522067 is about 735.2816832622.

The spelling of 397522067 in words is "three hundred ninety-seven million, five hundred twenty-two thousand, sixty-seven".