77050528 has 24 divisors (see below), whose sum is σ = 160617492. Its totient is φ = 36258816.

The previous prime is 77050507. The next prime is 77050543. The reversal of 77050528 is 82505077.

It can be written as a sum of positive squares in 2 ways, for example, as 68359824 + 8690704 = 8268^2 + 2948^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 77050493 and 77050502.

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, 70275 + ... + 71362.

Almost surely, 2^77050528 is an apocalyptic number.

It is an amenable number.

77050528 is an abundant number, since it is smaller than the sum of its proper divisors (83566964).

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

77050528 is a wasteful number, since it uses less digits than its factorization.

77050528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141664 (or 141656 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 77050528 is about 8777.8430152287. The cubic root of 77050528 is about 425.5251234474.

The spelling of 77050528 in words is "seventy-seven million, fifty thousand, five hundred twenty-eight".