77449041 has 20 divisors (see below), whose sum is σ = 118522404. Its totient is φ = 50371200.

The previous prime is 77449037. The next prime is 77449049. The reversal of 77449041 is 14094477.

It can be written as a sum of positive squares in 2 ways, for example, as 16842816 + 60606225 = 4104^2 + 7785^2 .

It is not a de Polignac number, because 77449041 - 2² = 77449037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77448987 and 77449005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77449049) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8340 + ... + 14981.

Almost surely, 2^77449041 is an apocalyptic number.

It is an amenable number.

77449041 is a deficient number, since it is larger than the sum of its proper divisors (41073363).

77449041 is a wasteful number, since it uses less digits than its factorization.

77449041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23374 (or 23365 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 77449041 is about 8800.5136781895. The cubic root of 77449041 is about 426.2574817158.

The spelling of 77449041 in words is "seventy-seven million, four hundred forty-nine thousand, forty-one".