397524867 has 4 divisors (see below), whose sum is σ = 530033160. Its totient is φ = 265016576.

The previous prime is 397524833. The next prime is 397524887. The reversal of 397524867 is 768425793.

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 397524867 - 2¹¹ = 397522819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397524887) 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, 66254142 + ... + 66254147.

It is an arithmetic number, because the mean of its divisors is an integer number (132508290).

Almost surely, 2^397524867 is an apocalyptic number.

397524867 is a deficient number, since it is larger than the sum of its proper divisors (132508293).

397524867 is a wasteful number, since it uses less digits than its factorization.

397524867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132508292.

The product of its digits is 2540160, while the sum is 51.

The square root of 397524867 is about 19938.0256545125. The cubic root of 397524867 is about 735.2834096098.

The spelling of 397524867 in words is "three hundred ninety-seven million, five hundred twenty-four thousand, eight hundred sixty-seven".