78348163 has 4 divisors (see below), whose sum is σ = 78479128. Its totient is φ = 78217200.

The previous prime is 78348131. The next prime is 78348167. The reversal of 78348163 is 36184387.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36184387 = 811 ⋅44617.

It is a cyclic number.

It is not a de Polignac number, because 78348163 - 2⁵ = 78348131 is a prime.

It is a super-2 number, since 2×78348163² = 12276869290949138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78348167) 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, 64581 + ... + 65782.

It is an arithmetic number, because the mean of its divisors is an integer number (19619782).

Almost surely, 2^78348163 is an apocalyptic number.

78348163 is a deficient number, since it is larger than the sum of its proper divisors (130965).

78348163 is a wasteful number, since it uses less digits than its factorization.

78348163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130964.

The product of its digits is 96768, while the sum is 40.

The square root of 78348163 is about 8851.4497682583. The cubic root of 78348163 is about 427.9006432979.

The spelling of 78348163 in words is "seventy-eight million, three hundred forty-eight thousand, one hundred sixty-three".