78860925 has 192 divisors, whose sum is σ = 183321600. Its totient is φ = 32659200.

The previous prime is 78860923. The next prime is 78860927. The reversal of 78860925 is 52906887.

It is an interprime number because it is at equal distance from previous prime (78860923) and next prime (78860927).

It is not a de Polignac number, because 78860925 - 2¹ = 78860923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78860921) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1833954 + ... + 1833996.

It is an arithmetic number, because the mean of its divisors is an integer number (954800).

Almost surely, 2^78860925 is an apocalyptic number.

78860925 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

78860925 is an abundant number, since it is smaller than the sum of its proper divisors (104460675).

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

78860925 is a wasteful number, since it uses less digits than its factorization.

78860925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 78860925 is about 8880.3673910486. The cubic root of 78860925 is about 428.8321021305.

The spelling of 78860925 in words is "seventy-eight million, eight hundred sixty thousand, nine hundred twenty-five".