76140865 has 4 divisors (see below), whose sum is σ = 91369044. Its totient is φ = 60912688.

The previous prime is 76140853. The next prime is 76140899. The reversal of 76140865 is 56804167.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11128896 + 65011969 = 3336^2 + 8063^2 .

It is a cyclic number.

It is not a de Polignac number, because 76140865 - 2¹¹ = 76138817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7614082 + ... + 7614091.

It is an arithmetic number, because the mean of its divisors is an integer number (22842261).

Almost surely, 2^76140865 is an apocalyptic number.

It is an amenable number.

76140865 is a deficient number, since it is larger than the sum of its proper divisors (15228179).

76140865 is a wasteful number, since it uses less digits than its factorization.

76140865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15228178.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 76140865 is about 8725.8733087296. The cubic root of 76140865 is about 423.8438983477.

The spelling of 76140865 in words is "seventy-six million, one hundred forty thousand, eight hundred sixty-five".