78610925 has 24 divisors (see below), whose sum is σ = 100707840. Its totient is φ = 60840000.

The previous prime is 78610921. The next prime is 78610927. The reversal of 78610925 is 52901687.

It is not a de Polignac number, because 78610925 - 2² = 78610921 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78610921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104300 + ... + 105050.

It is an arithmetic number, because the mean of its divisors is an integer number (4196160).

Almost surely, 2^78610925 is an apocalyptic number.

It is an amenable number.

78610925 is a deficient number, since it is larger than the sum of its proper divisors (22096915).

78610925 is a wasteful number, since it uses less digits than its factorization.

78610925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 78610925 is about 8866.2802234082. The cubic root of 78610925 is about 428.3784701467.

It can be divided in two parts, 786 and 10925, that added together give a palindrome (11711).

The spelling of 78610925 in words is "seventy-eight million, six hundred ten thousand, nine hundred twenty-five".