78948794 has 4 divisors (see below), whose sum is σ = 118423194. Its totient is φ = 39474396.

The previous prime is 78948791. The next prime is 78948797. The reversal of 78948794 is 49784987.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (78948791) and next prime (78948797).

It can be written as a sum of positive squares in only one way, i.e., 53071225 + 25877569 = 7285^2 + 5087^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78948791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19737197 + ... + 19737200.

Almost surely, 2^78948794 is an apocalyptic number.

78948794 is a deficient number, since it is larger than the sum of its proper divisors (39474400).

78948794 is a wasteful number, since it uses less digits than its factorization.

78948794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39474399.

The product of its digits is 4064256, while the sum is 56.

The square root of 78948794 is about 8885.3133878328. The cubic root of 78948794 is about 428.9913151651.

The spelling of 78948794 in words is "seventy-eight million, nine hundred forty-eight thousand, seven hundred ninety-four".