78994383 has 8 divisors (see below), whose sum is σ = 113427888. Its totient is φ = 48611904.

The previous prime is 78994369. The next prime is 78994403. The reversal of 78994383 is 38349987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78994383 - 2¹⁸ = 78732239 is a prime.

It is a super-2 number, since 2×78994383² = 12480225091101378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78994303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1012710 + ... + 1012787.

It is an arithmetic number, because the mean of its divisors is an integer number (14178486).

Almost surely, 2^78994383 is an apocalyptic number.

78994383 is a deficient number, since it is larger than the sum of its proper divisors (34433505).

78994383 is a wasteful number, since it uses less digits than its factorization.

78994383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025513.

The product of its digits is 1306368, while the sum is 51.

The square root of 78994383 is about 8887.8784307618. The cubic root of 78994383 is about 429.0738729887.

The spelling of 78994383 in words is "seventy-eight million, nine hundred ninety-four thousand, three hundred eighty-three".