78498785 has 8 divisors (see below), whose sum is σ = 99156480. Its totient is φ = 59493744.

The previous prime is 78498781. The next prime is 78498799. The reversal of 78498785 is 58789487.

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

It is a cyclic number.

It is not a de Polignac number, because 78498785 - 2² = 78498781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78498785.

It is not an unprimeable number, because it can be changed into a prime (78498781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413057 + ... + 413246.

It is an arithmetic number, because the mean of its divisors is an integer number (12394560).

Almost surely, 2^78498785 is an apocalyptic number.

It is an amenable number.

78498785 is a deficient number, since it is larger than the sum of its proper divisors (20657695).

78498785 is a wasteful number, since it uses less digits than its factorization.

78498785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826327.

The product of its digits is 4515840, while the sum is 56.

The square root of 78498785 is about 8859.9540066526. The cubic root of 78498785 is about 428.1746764954.

The spelling of 78498785 in words is "seventy-eight million, four hundred ninety-eight thousand, seven hundred eighty-five".