770055 has 32 divisors (see below), whose sum is σ = 1451520. Its totient is φ = 343680.

The previous prime is 770053. The next prime is 770057. The reversal of 770055 is 550077.

It is an interprime number because it is at equal distance from previous prime (770053) and next prime (770057).

It is not a de Polignac number, because 770055 - 2¹ = 770053 is a prime.

It is an Ulam number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1966 + ... + 2324.

It is an arithmetic number, because the mean of its divisors is an integer number (45360).

2⁷⁷⁰⁰⁵⁵ is an apocalyptic number.

770055 is a deficient number, since it is larger than the sum of its proper divisors (681465).

770055 is a wasteful number, since it uses less digits than its factorization.

770055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391.

The product of its (nonzero) digits is 1225, while the sum is 24.

The square root of 770055 is about 877.5277773381. The cubic root of 770055 is about 91.6587467905.

The spelling of 770055 in words is "seven hundred seventy thousand, fifty-five".