77792741 has 4 divisors (see below), whose sum is σ = 83776812. Its totient is φ = 71808672.

The previous prime is 77792717. The next prime is 77792749. The reversal of 77792741 is 14729777.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14729777 = 613 ⋅24029.

It can be written as a sum of positive squares in 2 ways, for example, as 42627841 + 35164900 = 6529^2 + 5930^2 .

It is not a de Polignac number, because 77792741 - 2⁶ = 77792677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77792692 and 77792701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77792749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2992016 + ... + 2992041.

It is an arithmetic number, because the mean of its divisors is an integer number (20944203).

Almost surely, 2^77792741 is an apocalyptic number.

It is an amenable number.

77792741 is a deficient number, since it is larger than the sum of its proper divisors (5984071).

77792741 is a wasteful number, since it uses less digits than its factorization.

77792741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5984070.

The product of its digits is 172872, while the sum is 44.

The square root of 77792741 is about 8820.0193310446. The cubic root of 77792741 is about 426.8870936081.

The spelling of 77792741 in words is "seventy-seven million, seven hundred ninety-two thousand, seven hundred forty-one".