770213 has 4 divisors (see below), whose sum is σ = 772608. Its totient is φ = 767820.

The previous prime is 770207. The next prime is 770227. The reversal of 770213 is 312077.

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: 312077 = 31 ⋅10067.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-770213 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 (770233) 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, 623 + ... + 1388.

It is an arithmetic number, because the mean of its divisors is an integer number (193152).

2⁷⁷⁰²¹³ is an apocalyptic number.

It is an amenable number.

770213 is a deficient number, since it is larger than the sum of its proper divisors (2395).

770213 is a wasteful number, since it uses less digits than its factorization.

770213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394.

The product of its (nonzero) digits is 294, while the sum is 20.

The square root of 770213 is about 877.6177983610. The cubic root of 770213 is about 91.6650152136.

The spelling of 770213 in words is "seven hundred seventy thousand, two hundred thirteen".