76757540 has 12 divisors (see below), whose sum is σ = 161190876. Its totient is φ = 30703008.

The previous prime is 76757507. The next prime is 76757543. The reversal of 76757540 is 4575767.

It can be written as a sum of positive squares in 2 ways, for example, as 60964864 + 15792676 = 7808^2 + 3974^2 .

It is not an unprimeable number, because it can be changed into a prime (76757543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1918919 + ... + 1918958.

It is an arithmetic number, because the mean of its divisors is an integer number (13432573).

Almost surely, 2^76757540 is an apocalyptic number.

It is an amenable number.

76757540 is an abundant number, since it is smaller than the sum of its proper divisors (84433336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76757540 is a wasteful number, since it uses less digits than its factorization.

76757540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3837886 (or 3837884 counting only the distinct ones).

The product of its (nonzero) digits is 205800, while the sum is 41.

The square root of 76757540 is about 8761.1380539288. The cubic root of 76757540 is about 424.9850790609.

The spelling of 76757540 in words is "seventy-six million, seven hundred fifty-seven thousand, five hundred forty".