76770005 has 32 divisors (see below), whose sum is σ = 103076064. Its totient is φ = 54521856.

The previous prime is 76769993. The next prime is 76770037. The reversal of 76770005 is 50007767.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 20729809 + 56040196 = 4553^2 + 7486^2 .

It is a cyclic number.

It is not a de Polignac number, because 76770005 - 2¹⁶ = 76704469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329369 + ... + 329601.

It is an arithmetic number, because the mean of its divisors is an integer number (3221127).

Almost surely, 2^76770005 is an apocalyptic number.

It is an amenable number.

76770005 is a deficient number, since it is larger than the sum of its proper divisors (26306059).

76770005 is a wasteful number, since it uses less digits than its factorization.

76770005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 76770005 is about 8761.8494052340. The cubic root of 76770005 is about 425.0080828913.

The spelling of 76770005 in words is "seventy-six million, seven hundred seventy thousand, five".