78994285 has 8 divisors (see below), whose sum is σ = 94993920. Its totient is φ = 63061584.

The previous prime is 78994283. The next prime is 78994301. The reversal of 78994285 is 58249987.

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 78994285 - 2¹ = 78994283 is a prime.

It is a super-2 number, since 2×78994285² = 12480194125322450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78994283) 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, 14097 + ... + 18886.

It is an arithmetic number, because the mean of its divisors is an integer number (11874240).

Almost surely, 2^78994285 is an apocalyptic number.

It is an amenable number.

78994285 is a deficient number, since it is larger than the sum of its proper divisors (15999635).

78994285 is a wasteful number, since it uses less digits than its factorization.

78994285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33467.

The product of its digits is 1451520, while the sum is 52.

The square root of 78994285 is about 8887.8729176333. The cubic root of 78994285 is about 429.0736955531.

The spelling of 78994285 in words is "seventy-eight million, nine hundred ninety-four thousand, two hundred eighty-five".