84777748 has 12 divisors (see below), whose sum is σ = 161848512. Its totient is φ = 38535320.

The previous prime is 84777733. The next prime is 84777757.

It is a happy number.

84777748 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 84777695 and 84777704.

It is a congruent number.

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, 963340 + ... + 963427.

It is an arithmetic number, because the mean of its divisors is an integer number (13487376).

Almost surely, 2^84777748 is an apocalyptic number.

It is an amenable number.

84777748 is a deficient number, since it is larger than the sum of its proper divisors (77070764).

84777748 is a wasteful number, since it uses less digits than its factorization.

84777748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926782 (or 1926780 counting only the distinct ones).

The product of its digits is 2458624, while the sum is 52.

The square root of 84777748 is about 9207.4832609134. The cubic root of 84777748 is about 439.2994153978.

The spelling of 84777748 in words is "eighty-four million, seven hundred seventy-seven thousand, seven hundred forty-eight".