78804501 has 8 divisors (see below), whose sum is σ = 107635584. Its totient is φ = 51254880.

The previous prime is 78804443. The next prime is 78804527. The reversal of 78804501 is 10540887.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78804501 - 2⁶ = 78804437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78804301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320221 + ... + 320466.

It is an arithmetic number, because the mean of its divisors is an integer number (13454448).

Almost surely, 2^78804501 is an apocalyptic number.

It is an amenable number.

78804501 is a deficient number, since it is larger than the sum of its proper divisors (28831083).

78804501 is a wasteful number, since it uses less digits than its factorization.

78804501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640731.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 78804501 is about 8877.1899269983. The cubic root of 78804501 is about 428.7298030702.

The spelling of 78804501 in words is "seventy-eight million, eight hundred four thousand, five hundred one".