76378117 has 4 divisors (see below), whose sum is σ = 76456800. Its totient is φ = 76299436.

The previous prime is 76378111. The next prime is 76378123. The reversal of 76378117 is 71187367.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71187367 = 1229 ⋅57923.

It is an interprime number because it is at equal distance from previous prime (76378111) and next prime (76378123).

It is a cyclic number.

It is not a de Polignac number, because 76378117 - 2⁷ = 76377989 is a prime.

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 76378117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76378111) 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, 37867 + ... + 39832.

It is an arithmetic number, because the mean of its divisors is an integer number (19114200).

Almost surely, 2^76378117 is an apocalyptic number.

It is an amenable number.

76378117 is a deficient number, since it is larger than the sum of its proper divisors (78683).

76378117 is an equidigital number, since it uses as much as digits as its factorization.

76378117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78682.

The product of its digits is 49392, while the sum is 40.

The square root of 76378117 is about 8739.4574774410. The cubic root of 76378117 is about 424.2836689765.

The spelling of 76378117 in words is "seventy-six million, three hundred seventy-eight thousand, one hundred seventeen".