78315413 has 8 divisors (see below), whose sum is σ = 90460800. Its totient is φ = 67007680.

The previous prime is 78315409. The next prime is 78315449. The reversal of 78315413 is 31451387.

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

It is a cyclic number.

It is not a de Polignac number, because 78315413 - 2² = 78315409 is a prime.

It is a super-2 number, since 2×78315413² = 12266607826721138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78315413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78315463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209213 + ... + 209586.

It is an arithmetic number, because the mean of its divisors is an integer number (11307600).

Almost surely, 2^78315413 is an apocalyptic number.

It is an amenable number.

78315413 is a deficient number, since it is larger than the sum of its proper divisors (12145387).

78315413 is a wasteful number, since it uses less digits than its factorization.

78315413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418827.

The product of its digits is 10080, while the sum is 32.

The square root of 78315413 is about 8849.5995954619. The cubic root of 78315413 is about 427.8410133138.

The spelling of 78315413 in words is "seventy-eight million, three hundred fifteen thousand, four hundred thirteen".