607776138 has 12 divisors (see below), whose sum is σ = 1316848338. Its totient is φ = 202592040.

The previous prime is 607776137. The next prime is 607776139. The reversal of 607776138 is 831677706.

It is a happy number.

607776138 is a `hidden beast` number, since 607 + 7 + 7 + 6 + 1 + 38 = 666.

607776138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (607776137) and next prime (607776139).

It can be written as a sum of positive squares in only one way, i.e., 514518489 + 93257649 = 22683^2 + 9657^2 .

It is a junction number, because it is equal to n+sod(n) for n = 607776093 and 607776102.

It is not an unprimeable number, because it can be changed into a prime (607776131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16882653 + ... + 16882688.

Almost surely, 2^607776138 is an apocalyptic number.

607776138 is an abundant number, since it is smaller than the sum of its proper divisors (709072200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

607776138 is a wasteful number, since it uses less digits than its factorization.

607776138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33765349 (or 33765346 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 607776138 is about 24653.1161924816. The cubic root of 607776138 is about 847.0607304100.

It can be divided in two parts, 6077 and 76138, that added together give a triangular number (82215 = T₄₀₅).

The spelling of 607776138 in words is "six hundred seven million, seven hundred seventy-six thousand, one hundred thirty-eight".