77270049 has 12 divisors (see below), whose sum is σ = 118177956. Its totient is φ = 48483072.

The previous prime is 77270047. The next prime is 77270071. The reversal of 77270049 is 94007277.

It can be written as a sum of positive squares in 2 ways, for example, as 68359824 + 8910225 = 8268^2 + 2985^2 .

It is not a de Polignac number, because 77270049 - 2¹ = 77270047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77269995 and 77270022.

It is not an unprimeable number, because it can be changed into a prime (77270047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252364 + ... + 252669.

It is an arithmetic number, because the mean of its divisors is an integer number (9848163).

Almost surely, 2^77270049 is an apocalyptic number.

It is an amenable number.

77270049 is a deficient number, since it is larger than the sum of its proper divisors (40907907).

77270049 is a wasteful number, since it uses less digits than its factorization.

77270049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505056 (or 505053 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 77270049 is about 8790.3383893909. The cubic root of 77270049 is about 425.9288547459.

The spelling of 77270049 in words is "seventy-seven million, two hundred seventy thousand, forty-nine".