78535378 has 8 divisors (see below), whose sum is σ = 118969740. Its totient is φ = 38878800.

The previous prime is 78535361. The next prime is 78535381. The reversal of 78535378 is 87353587.

It can be written as a sum of positive squares in 2 ways, for example, as 57714409 + 20820969 = 7597^2 + 4563^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194193 + ... + 194596.

Almost surely, 2^78535378 is an apocalyptic number.

78535378 is a deficient number, since it is larger than the sum of its proper divisors (40434362).

78535378 is a wasteful number, since it uses less digits than its factorization.

78535378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388892.

The product of its digits is 705600, while the sum is 46.

The square root of 78535378 is about 8862.0188444846. The cubic root of 78535378 is about 428.2411988072.

It can be divided in two parts, 7853 and 5378, that added together give a palindrome (13231).

The spelling of 78535378 in words is "seventy-eight million, five hundred thirty-five thousand, three hundred seventy-eight".