78689463 has 16 divisors (see below), whose sum is σ = 109697280. Its totient is φ = 50079744.

The previous prime is 78689461. The next prime is 78689467. The reversal of 78689463 is 36498687.

It is not a de Polignac number, because 78689463 - 2¹ = 78689461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78689461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52320 + ... + 53802.

It is an arithmetic number, because the mean of its divisors is an integer number (6856080).

Almost surely, 2^78689463 is an apocalyptic number.

78689463 is a deficient number, since it is larger than the sum of its proper divisors (31007817).

78689463 is a wasteful number, since it uses less digits than its factorization.

78689463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278.

The product of its digits is 1741824, while the sum is 51.

The square root of 78689463 is about 8870.7081453512. The cubic root of 78689463 is about 428.5210830225.

The spelling of 78689463 in words is "seventy-eight million, six hundred eighty-nine thousand, four hundred sixty-three".