397769339 has 8 divisors (see below), whose sum is σ = 447928320. Its totient is φ = 349943400.

The previous prime is 397769321. The next prime is 397769341. The reversal of 397769339 is 933967793.

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 397769339 - 2⁸ = 397769083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397769839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582899 + ... + 583580.

It is an arithmetic number, because the mean of its divisors is an integer number (55991040).

Almost surely, 2^397769339 is an apocalyptic number.

397769339 is a deficient number, since it is larger than the sum of its proper divisors (50158981).

397769339 is a wasteful number, since it uses less digits than its factorization.

397769339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166521.

The product of its digits is 5786802, while the sum is 56.

The square root of 397769339 is about 19944.1555098229. The cubic root of 397769339 is about 735.4341082487.

The spelling of 397769339 in words is "three hundred ninety-seven million, seven hundred sixty-nine thousand, three hundred thirty-nine".