76801636 has 6 divisors (see below), whose sum is σ = 134402870. Its totient is φ = 38400816.

The previous prime is 76801633. The next prime is 76801649. The reversal of 76801636 is 63610867.

It can be written as a sum of positive squares in only one way, i.e., 64899136 + 11902500 = 8056^2 + 3450^2 .

It is a junction number, because it is equal to n+sod(n) for n = 76801595 and 76801604.

It is not an unprimeable number, because it can be changed into a prime (76801633) 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 as a sum of consecutive naturals, namely, 9600201 + ... + 9600208.

Almost surely, 2^76801636 is an apocalyptic number.

It is an amenable number.

76801636 is a deficient number, since it is larger than the sum of its proper divisors (57601234).

76801636 is a wasteful number, since it uses less digits than its factorization.

76801636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19200413 (or 19200411 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 76801636 is about 8763.6542606381. The cubic root of 76801636 is about 425.0664458971.

It can be divided in two parts, 7680 and 1636, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 76801636 in words is "seventy-six million, eight hundred one thousand, six hundred thirty-six".