397143077 has 8 divisors (see below), whose sum is σ = 410333952. Its totient is φ = 383976000.

The previous prime is 397143067. The next prime is 397143113. The reversal of 397143077 is 770341793.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 397143077 - 2¹⁴ = 397126693 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 (397143007) 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 7 ways as a sum of consecutive naturals, for example, 31898 + ... + 42564.

It is an arithmetic number, because the mean of its divisors is an integer number (51291744).

Almost surely, 2^397143077 is an apocalyptic number.

It is an amenable number.

397143077 is a deficient number, since it is larger than the sum of its proper divisors (13190875).

397143077 is a wasteful number, since it uses less digits than its factorization.

397143077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11899.

The product of its (nonzero) digits is 111132, while the sum is 41.

The square root of 397143077 is about 19928.4489361315. The cubic root of 397143077 is about 735.0479410937.

The spelling of 397143077 in words is "three hundred ninety-seven million, one hundred forty-three thousand, seventy-seven".