77930325 has 108 divisors (see below), whose sum is σ = 163302048. Its totient is φ = 35164800.

The previous prime is 77930323. The next prime is 77930341. The reversal of 77930325 is 52303977.

It is a happy number.

It is not a de Polignac number, because 77930325 - 2¹ = 77930323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77930325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77930323) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 2106207 + ... + 2106243.

It is an arithmetic number, because the mean of its divisors is an integer number (1512056).

Almost surely, 2^77930325 is an apocalyptic number.

77930325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

77930325 is an abundant number, since it is smaller than the sum of its proper divisors (85371723).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77930325 is a wasteful number, since it uses less digits than its factorization.

77930325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 36.

The square root of 77930325 is about 8827.8154149257. The cubic root of 77930325 is about 427.1386091189.

The spelling of 77930325 in words is "seventy-seven million, nine hundred thirty thousand, three hundred twenty-five".