78479334 has 16 divisors (see below), whose sum is σ = 174398640. Its totient is φ = 26159760.

The previous prime is 78479333. The next prime is 78479341. The reversal of 78479334 is 43397487.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 78479334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78479333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 726607 + ... + 726714.

It is an arithmetic number, because the mean of its divisors is an integer number (10899915).

Almost surely, 2^78479334 is an apocalyptic number.

78479334 is an abundant number, since it is smaller than the sum of its proper divisors (95919306).

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

78479334 is a wasteful number, since it uses less digits than its factorization.

78479334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453332 (or 1453326 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 78479334 is about 8858.8562467172. The cubic root of 78479334 is about 428.1393081619.

The spelling of 78479334 in words is "seventy-eight million, four hundred seventy-nine thousand, three hundred thirty-four".