770061 has 4 divisors (see below), whose sum is σ = 1026752. Its totient is φ = 513372.

The previous prime is 770059. The next prime is 770069. The reversal of 770061 is 160077.

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: 160077 = 3 ⋅53359.

It is not a de Polignac number, because 770061 - 2¹ = 770059 is a prime.

It is a D-number.

It is a Duffinian number.

770061 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770069) 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, 128341 + ... + 128346.

It is an arithmetic number, because the mean of its divisors is an integer number (256688).

2⁷⁷⁰⁰⁶¹ is an apocalyptic number.

It is an amenable number.

770061 is a deficient number, since it is larger than the sum of its proper divisors (256691).

770061 is a wasteful number, since it uses less digits than its factorization.

770061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256690.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 770061 is about 877.5311960267. The cubic root of 770061 is about 91.6589848475.

The spelling of 770061 in words is "seven hundred seventy thousand, sixty-one".