78971414 has 4 divisors (see below), whose sum is σ = 118457124. Its totient is φ = 39485706.

The previous prime is 78971413. The next prime is 78971423. The reversal of 78971414 is 41417987.

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

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 polite number, since it can be written as a sum of consecutive naturals, namely, 19742852 + ... + 19742855.

It is an arithmetic number, because the mean of its divisors is an integer number (29614281).

Almost surely, 2^78971414 is an apocalyptic number.

78971414 is a deficient number, since it is larger than the sum of its proper divisors (39485710).

78971414 is a wasteful number, since it uses less digits than its factorization.

78971414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39485709.

The product of its digits is 56448, while the sum is 41.

The square root of 78971414 is about 8886.5861836816. The cubic root of 78971414 is about 429.0322820436.

The spelling of 78971414 in words is "seventy-eight million, nine hundred seventy-one thousand, four hundred fourteen".