78526484 has 12 divisors (see below), whose sum is σ = 137694900. Its totient is φ = 39185088.

The previous prime is 78526477. The next prime is 78526499. The reversal of 78526484 is 48462587.

It can be written as a sum of positive squares in 2 ways, for example, as 58186384 + 20340100 = 7628^2 + 4510^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17249 + ... + 21320.

It is an arithmetic number, because the mean of its divisors is an integer number (11474575).

Almost surely, 2^78526484 is an apocalyptic number.

It is an amenable number.

78526484 is a deficient number, since it is larger than the sum of its proper divisors (59168416).

78526484 is a wasteful number, since it uses less digits than its factorization.

78526484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39082 (or 39080 counting only the distinct ones).

The product of its digits is 430080, while the sum is 44.

The square root of 78526484 is about 8861.5170258822. The cubic root of 78526484 is about 428.2250323307.

The spelling of 78526484 in words is "seventy-eight million, five hundred twenty-six thousand, four hundred eighty-four".