78376049 has 4 divisors (see below), whose sum is σ = 78414960. Its totient is φ = 78337140.

The previous prime is 78375991. The next prime is 78376079. The reversal of 78376049 is 94067387.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78376049 - 2¹⁶ = 78310513 is a prime.

It is a super-3 number, since 3×78376049³ (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 not an unprimeable number, because it can be changed into a prime (78376079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16259 + ... + 20520.

It is an arithmetic number, because the mean of its divisors is an integer number (19603740).

Almost surely, 2^78376049 is an apocalyptic number.

It is an amenable number.

78376049 is a deficient number, since it is larger than the sum of its proper divisors (38911).

78376049 is a wasteful number, since it uses less digits than its factorization.

78376049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38910.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 78376049 is about 8853.0248502983. The cubic root of 78376049 is about 427.9514039943.

The spelling of 78376049 in words is "seventy-eight million, three hundred seventy-six thousand, forty-nine".