78971463 has 8 divisors (see below), whose sum is σ = 116994800. Its totient is φ = 52647624.

The previous prime is 78971449. The next prime is 78971479. The reversal of 78971463 is 36417987.

It is not a de Polignac number, because 78971463 - 2¹³ = 78963271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78971413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1462408 + ... + 1462461.

It is an arithmetic number, because the mean of its divisors is an integer number (14624350).

Almost surely, 2^78971463 is an apocalyptic number.

78971463 is a deficient number, since it is larger than the sum of its proper divisors (38023337).

78971463 is a wasteful number, since it uses less digits than its factorization.

78971463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924878 (or 2924872 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 78971463 is about 8886.5889406453. The cubic root of 78971463 is about 429.0323707785.

The spelling of 78971463 in words is "seventy-eight million, nine hundred seventy-one thousand, four hundred sixty-three".