75643677 has 12 divisors (see below), whose sum is σ = 109338684. Its totient is φ = 50394240.

The previous prime is 75643643. The next prime is 75643691. The reversal of 75643677 is 77634657.

It can be written as a sum of positive squares in 2 ways, for example, as 9400356 + 66243321 = 3066^2 + 8139^2 .

It is not a de Polignac number, because 75643677 - 2¹⁹ = 75119389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75643697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22677 + ... + 25797.

It is an arithmetic number, because the mean of its divisors is an integer number (9111557).

Almost surely, 2^75643677 is an apocalyptic number.

It is an amenable number.

75643677 is a deficient number, since it is larger than the sum of its proper divisors (33695007).

75643677 is a wasteful number, since it uses less digits than its factorization.

75643677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5820 (or 5817 counting only the distinct ones).

The product of its digits is 740880, while the sum is 45.

The square root of 75643677 is about 8697.3373511667. The cubic root of 75643677 is about 422.9193381061.

The spelling of 75643677 in words is "seventy-five million, six hundred forty-three thousand, six hundred seventy-seven".