78410381 has 8 divisors (see below), whose sum is σ = 93508224. Its totient is φ = 64286640.

The previous prime is 78410357. The next prime is 78410383. The reversal of 78410381 is 18301487.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78410381 is a prime.

It is a super-2 number, since 2×78410381² = 12296375697130322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78410383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243350 + ... + 243671.

It is an arithmetic number, because the mean of its divisors is an integer number (11688528).

Almost surely, 2^78410381 is an apocalyptic number.

It is an amenable number.

78410381 is a deficient number, since it is larger than the sum of its proper divisors (15097843).

78410381 is a wasteful number, since it uses less digits than its factorization.

78410381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487051.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 78410381 is about 8854.9636362890. The cubic root of 78410381 is about 428.0138817665.

The spelling of 78410381 in words is "seventy-eight million, four hundred ten thousand, three hundred eighty-one".