78498893 has 8 divisors (see below), whose sum is σ = 85704960. Its totient is φ = 71304480.

The previous prime is 78498881. The next prime is 78498943. The reversal of 78498893 is 39889487.

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 78498893 - 2¹⁶ = 78433357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78498803) 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, 17321 + ... + 21377.

It is an arithmetic number, because the mean of its divisors is an integer number (10713120).

Almost surely, 2^78498893 is an apocalyptic number.

It is an amenable number.

78498893 is a deficient number, since it is larger than the sum of its proper divisors (7206067).

78498893 is a wasteful number, since it uses less digits than its factorization.

78498893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5827.

The product of its digits is 3483648, while the sum is 56.

The square root of 78498893 is about 8859.9601014903. The cubic root of 78498893 is about 428.1748728587.

The spelling of 78498893 in words is "seventy-eight million, four hundred ninety-eight thousand, eight hundred ninety-three".