76385437 has 4 divisors (see below), whose sum is σ = 80878716. Its totient is φ = 71892160.

The previous prime is 76385429. The next prime is 76385443. The reversal of 76385437 is 73458367.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73458367 = 73 ⋅1006279.

It can be written as a sum of positive squares in 2 ways, for example, as 53860921 + 22524516 = 7339^2 + 4746^2 .

It is a cyclic number.

It is not a de Polignac number, because 76385437 - 2³ = 76385429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76385393 and 76385402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76385497) 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 3 ways as a sum of consecutive naturals, for example, 2246614 + ... + 2246647.

It is an arithmetic number, because the mean of its divisors is an integer number (20219679).

Almost surely, 2^76385437 is an apocalyptic number.

It is an amenable number.

76385437 is a deficient number, since it is larger than the sum of its proper divisors (4493279).

76385437 is a wasteful number, since it uses less digits than its factorization.

76385437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4493278.

The product of its digits is 423360, while the sum is 43.

The square root of 76385437 is about 8739.8762577053. The cubic root of 76385437 is about 424.2972228467.

The spelling of 76385437 in words is "seventy-six million, three hundred eighty-five thousand, four hundred thirty-seven".