78380753 has 8 divisors (see below), whose sum is σ = 86388960. Its totient is φ = 70519680.

The previous prime is 78380737. The next prime is 78380759. The reversal of 78380753 is 35708387.

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

It is not a de Polignac number, because 78380753 - 2⁴ = 78380737 is a prime.

It is a super-3 number, since 3×78380753³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 78380753.

It is not an unprimeable number, because it can be changed into a prime (78380759) 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, 35663 + ... + 37796.

It is an arithmetic number, because the mean of its divisors is an integer number (10798620).

Almost surely, 2^78380753 is an apocalyptic number.

It is an amenable number.

78380753 is a deficient number, since it is larger than the sum of its proper divisors (8008207).

78380753 is a wasteful number, since it uses less digits than its factorization.

78380753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73567.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 78380753 is about 8853.2905182198. The cubic root of 78380753 is about 427.9599654666.

The spelling of 78380753 in words is "seventy-eight million, three hundred eighty thousand, seven hundred fifty-three".