78382534 has 8 divisors (see below), whose sum is σ = 121628160. Its totient is φ = 37839816.

The previous prime is 78382523. The next prime is 78382541. The reversal of 78382534 is 43528387.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78382534² = 12287643272522312, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 675654 + ... + 675769.

It is an arithmetic number, because the mean of its divisors is an integer number (15203520).

Almost surely, 2^78382534 is an apocalyptic number.

78382534 is a deficient number, since it is larger than the sum of its proper divisors (43245626).

78382534 is a wasteful number, since it uses less digits than its factorization.

78382534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351454.

The product of its digits is 161280, while the sum is 40.

The square root of 78382534 is about 8853.3911017192. The cubic root of 78382534 is about 427.9632068701.

The spelling of 78382534 in words is "seventy-eight million, three hundred eighty-two thousand, five hundred thirty-four".