78971452 has 24 divisors (see below), whose sum is σ = 158474624. Its totient is φ = 33730992.

The previous prime is 78971449. The next prime is 78971479. The reversal of 78971452 is 25417987.

It is a junction number, because it is equal to n+sod(n) for n = 78971399 and 78971408.

It is a congruent number.

It is an unprimeable number.

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, 4003 + ... + 13189.

Almost surely, 2^78971452 is an apocalyptic number.

It is an amenable number.

78971452 is an abundant number, since it is smaller than the sum of its proper divisors (79503172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78971452 is a wasteful number, since it uses less digits than its factorization.

78971452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9505 (or 9503 counting only the distinct ones).

The product of its digits is 141120, while the sum is 43.

The square root of 78971452 is about 8886.5883217352. The cubic root of 78971452 is about 429.0323508585.

The spelling of 78971452 in words is "seventy-eight million, nine hundred seventy-one thousand, four hundred fifty-two".