77303125 has 24 divisors (see below), whose sum is σ = 100071720. Its totient is φ = 59640000.

The previous prime is 77303099. The next prime is 77303143. The reversal of 77303125 is 52130377.

It can be written as a sum of positive squares in 12 ways, for example, as 73582084 + 3721041 = 8578^2 + 1929^2 .

It is not a de Polignac number, because 77303125 - 2⁹ = 77302613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77303093 and 77303102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90199 + ... + 91051.

It is an arithmetic number, because the mean of its divisors is an integer number (4169655).

Almost surely, 2^77303125 is an apocalyptic number.

It is an amenable number.

77303125 is a deficient number, since it is larger than the sum of its proper divisors (22768595).

77303125 is an frugal number, since it uses more digits than its factorization.

77303125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 77303125 is about 8792.2195718715. The cubic root of 77303125 is about 425.9896200458.

The spelling of 77303125 in words is "seventy-seven million, three hundred three thousand, one hundred twenty-five".