76828810 has 8 divisors (see below), whose sum is σ = 138291876. Its totient is φ = 30731520.

The previous prime is 76828783. The next prime is 76828811. The reversal of 76828810 is 1882867.

It can be written as a sum of positive squares in 2 ways, for example, as 69105969 + 7722841 = 8313^2 + 2779^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×76828810² = 11805332092032200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76828811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3841431 + ... + 3841450.

Almost surely, 2^76828810 is an apocalyptic number.

76828810 is a deficient number, since it is larger than the sum of its proper divisors (61463066).

76828810 is a wasteful number, since it uses less digits than its factorization.

76828810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7682888.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 76828810 is about 8765.2045041744. The cubic root of 76828810 is about 425.1165724056.

The spelling of 76828810 in words is "seventy-six million, eight hundred twenty-eight thousand, eight hundred ten".