77134345 has 16 divisors (see below), whose sum is σ = 97569360. Its totient is φ = 58449664.

The previous prime is 77134313. The next prime is 77134361. The reversal of 77134345 is 54343177.

It can be written as a sum of positive squares in 8 ways, for example, as 63504 + 77070841 = 252^2 + 8779^2 .

It is a cyclic number.

It is not a de Polignac number, because 77134345 - 2⁵ = 77134313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77134345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2667 + ... + 12703.

It is an arithmetic number, because the mean of its divisors is an integer number (6098085).

Almost surely, 2^77134345 is an apocalyptic number.

It is an amenable number.

77134345 is a deficient number, since it is larger than the sum of its proper divisors (20435015).

77134345 is a wasteful number, since it uses less digits than its factorization.

77134345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10124.

The product of its digits is 35280, while the sum is 34.

The square root of 77134345 is about 8782.6160681200. The cubic root of 77134345 is about 425.6793655843.

The spelling of 77134345 in words is "seventy-seven million, one hundred thirty-four thousand, three hundred forty-five".