397073967 has 4 divisors (see below), whose sum is σ = 529431960. Its totient is φ = 264715976.

The previous prime is 397073939. The next prime is 397074011. The reversal of 397073967 is 769370793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 769370793 = 3 ⋅256456931.

It is a cyclic number.

It is not a de Polignac number, because 397073967 - 2⁶ = 397073903 is a prime.

It is a super-3 number, since 3×397073967³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397003967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66178992 + ... + 66178997.

It is an arithmetic number, because the mean of its divisors is an integer number (132357990).

Almost surely, 2^397073967 is an apocalyptic number.

397073967 is a deficient number, since it is larger than the sum of its proper divisors (132357993).

397073967 is a wasteful number, since it uses less digits than its factorization.

397073967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132357992.

The product of its (nonzero) digits is 1500282, while the sum is 51.

The square root of 397073967 is about 19926.7149073800. The cubic root of 397073967 is about 735.0053014565.

The spelling of 397073967 in words is "three hundred ninety-seven million, seventy-three thousand, nine hundred sixty-seven".