77883125 has 20 divisors (see below), whose sum is σ = 100702140. Its totient is φ = 60144000.

The previous prime is 77883107. The next prime is 77883139. The reversal of 77883125 is 52138877.

It can be written as a sum of positive squares in 10 ways, for example, as 57866449 + 20016676 = 7607^2 + 4474^2 .

It is not a de Polignac number, because 77883125 - 2⁶ = 77883061 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15977 + ... + 20273.

It is an arithmetic number, because the mean of its divisors is an integer number (5035107).

Almost surely, 2^77883125 is an apocalyptic number.

It is an amenable number.

77883125 is a deficient number, since it is larger than the sum of its proper divisors (22819015).

77883125 is an equidigital number, since it uses as much as digits as its factorization.

77883125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4346 (or 4331 counting only the distinct ones).

The product of its digits is 94080, while the sum is 41.

The square root of 77883125 is about 8825.1416419228. The cubic root of 77883125 is about 427.0523567989.

The spelling of 77883125 in words is "seventy-seven million, eight hundred eighty-three thousand, one hundred twenty-five".