76726636 has 24 divisors (see below), whose sum is σ = 161530880. Its totient is φ = 31151952.

The previous prime is 76726631. The next prime is 76726649. The reversal of 76726636 is 63662767.

76726636 = 161² + 162² + ... + 616².

It is a junction number, because it is equal to n+sod(n) for n = 76726592 and 76726601.

It is not an unprimeable number, because it can be changed into a prime (76726631) 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 7 ways as a sum of consecutive naturals, for example, 71580 + ... + 72643.

Almost surely, 2^76726636 is an apocalyptic number.

76726636 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

76726636 is an abundant number, since it is smaller than the sum of its proper divisors (84804244).

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

76726636 is a wasteful number, since it uses less digits than its factorization.

76726636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144253 (or 144251 counting only the distinct ones).

The product of its digits is 381024, while the sum is 43.

The square root of 76726636 is about 8759.3741785586. The cubic root of 76726636 is about 424.9280357967.

The spelling of 76726636 in words is "seventy-six million, seven hundred twenty-six thousand, six hundred thirty-six".