78935485 has 4 divisors (see below), whose sum is σ = 94722588. Its totient is φ = 63148384.

The previous prime is 78935449. The next prime is 78935489. The reversal of 78935485 is 58453987.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58453987 = 41 ⋅1425707.

It can be written as a sum of positive squares in 2 ways, for example, as 42224004 + 36711481 = 6498^2 + 6059^2 .

It is a cyclic number.

It is not a de Polignac number, because 78935485 - 2¹⁵ = 78902717 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78935489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7893544 + ... + 7893553.

It is an arithmetic number, because the mean of its divisors is an integer number (23680647).

Almost surely, 2^78935485 is an apocalyptic number.

It is an amenable number.

78935485 is a deficient number, since it is larger than the sum of its proper divisors (15787103).

78935485 is a wasteful number, since it uses less digits than its factorization.

78935485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15787102.

The product of its digits is 1209600, while the sum is 49.

The square root of 78935485 is about 8884.5644237633. The cubic root of 78935485 is about 428.9672076984.

The spelling of 78935485 in words is "seventy-eight million, nine hundred thirty-five thousand, four hundred eighty-five".