63077128 has 16 divisors (see below), whose sum is σ = 118579500. Its totient is φ = 31455936.

The previous prime is 63077107. The next prime is 63077137. The reversal of 63077128 is 82177036.

It can be written as a sum of positive squares in 2 ways, for example, as 63075364 + 1764 = 7942^2 + 42^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63077093 and 63077102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7023 + ... + 13246.

Almost surely, 2^63077128 is an apocalyptic number.

It is an amenable number.

63077128 is a deficient number, since it is larger than the sum of its proper divisors (55502372).

63077128 is a wasteful number, since it uses less digits than its factorization.

63077128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20664 (or 20660 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 63077128 is about 7942.1110543734. Note that the first 3 decimals coincide. The cubic root of 63077128 is about 398.0680337894.

The spelling of 63077128 in words is "sixty-three million, seventy-seven thousand, one hundred twenty-eight".