76445636 has 6 divisors (see below), whose sum is σ = 133779870. Its totient is φ = 38222816.

The previous prime is 76445623. The next prime is 76445639. The reversal of 76445636 is 63654467.

It can be written as a sum of positive squares in only one way, i.e., 49984900 + 26460736 = 7070^2 + 5144^2 .

It is a junction number, because it is equal to n+sod(n) for n = 76445593 and 76445602.

It is not an unprimeable number, because it can be changed into a prime (76445639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9555701 + ... + 9555708.

It is an arithmetic number, because the mean of its divisors is an integer number (22296645).

Almost surely, 2^76445636 is an apocalyptic number.

It is an amenable number.

76445636 is a deficient number, since it is larger than the sum of its proper divisors (57334234).

76445636 is a wasteful number, since it uses less digits than its factorization.

76445636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19111413 (or 19111411 counting only the distinct ones).

The product of its digits is 362880, while the sum is 41.

The square root of 76445636 is about 8743.3195069150. The cubic root of 76445636 is about 424.4086557871.

The spelling of 76445636 in words is "seventy-six million, four hundred forty-five thousand, six hundred thirty-six".