76280641 has 4 divisors (see below), whose sum is σ = 76837572. Its totient is φ = 75723712.

The previous prime is 76280629. The next prime is 76280647. The reversal of 76280641 is 14608267.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14608267 = 2423 ⋅6029.

It can be written as a sum of positive squares in 2 ways, for example, as 28047616 + 48233025 = 5296^2 + 6945^2 .

It is a cyclic number.

It is not a de Polignac number, because 76280641 - 2⁵ = 76280609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76280597 and 76280606.

It is not an unprimeable number, because it can be changed into a prime (76280647) 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, 278260 + ... + 278533.

It is an arithmetic number, because the mean of its divisors is an integer number (19209393).

Almost surely, 2^76280641 is an apocalyptic number.

It is an amenable number.

76280641 is a deficient number, since it is larger than the sum of its proper divisors (556931).

76280641 is a wasteful number, since it uses less digits than its factorization.

76280641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556930.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 76280641 is about 8733.8789206171. The cubic root of 76280641 is about 424.1030977043.

The spelling of 76280641 in words is "seventy-six million, two hundred eighty thousand, six hundred forty-one".