78465726 has 32 divisors (see below), whose sum is σ = 174765600. Its totient is φ = 26095680.

The previous prime is 78465697. The next prime is 78465749. The reversal of 78465726 is 62756487.

78465726 is a `hidden beast` number, since 78 + 4 + 6 + 572 + 6 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26740 + ... + 29528.

It is an arithmetic number, because the mean of its divisors is an integer number (5461425).

Almost surely, 2^78465726 is an apocalyptic number.

78465726 is an abundant number, since it is smaller than the sum of its proper divisors (96299874).

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

78465726 is a wasteful number, since it uses less digits than its factorization.

78465726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3321 (or 3315 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 78465726 is about 8858.0881684481. The cubic root of 78465726 is about 428.1145608551.

The spelling of 78465726 in words is "seventy-eight million, four hundred sixty-five thousand, seven hundred twenty-six".