770397 has 4 divisors (see below), whose sum is σ = 1027200. Its totient is φ = 513596.

The previous prime is 770387. The next prime is 770401. The reversal of 770397 is 793077.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 793077 = 3 ⋅264359.

It is a cyclic number.

It is not a de Polignac number, because 770397 - 2¹² = 766301 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128397 + ... + 128402.

It is an arithmetic number, because the mean of its divisors is an integer number (256800).

2⁷⁷⁰³⁹⁷ is an apocalyptic number.

It is an amenable number.

770397 is a deficient number, since it is larger than the sum of its proper divisors (256803).

770397 is a wasteful number, since it uses less digits than its factorization.

770397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256802.

The product of its (nonzero) digits is 9261, while the sum is 33.

The square root of 770397 is about 877.7226213332. The cubic root of 770397 is about 91.6723140690.

The spelling of 770397 in words is "seven hundred seventy thousand, three hundred ninety-seven".