77271036 has 24 divisors (see below), whose sum is σ = 180512640. Its totient is φ = 25726512.

The previous prime is 77271031. The next prime is 77271049. The reversal of 77271036 is 63017277.

It is a junction number, because it is equal to n+sod(n) for n = 77270988 and 77271006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77271031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8275 + ... + 14933.

It is an arithmetic number, because the mean of its divisors is an integer number (7521360).

Almost surely, 2^77271036 is an apocalyptic number.

It is an amenable number.

77271036 is an abundant number, since it is smaller than the sum of its proper divisors (103241604).

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

77271036 is a wasteful number, since it uses less digits than its factorization.

77271036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7633 (or 7631 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 33.

The square root of 77271036 is about 8790.3945303951. The cubic root of 77271036 is about 425.9306682557.

The spelling of 77271036 in words is "seventy-seven million, two hundred seventy-one thousand, thirty-six".