76820535 has 96 divisors (see below), whose sum is σ = 159148800. Its totient is φ = 34859520.

The previous prime is 76820531. The next prime is 76820539. The reversal of 76820535 is 53502867.

It is an interprime number because it is at equal distance from previous prime (76820531) and next prime (76820539).

It is not a de Polignac number, because 76820535 - 2² = 76820531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76820535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76820531) 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 95 ways as a sum of consecutive naturals, for example, 429076 + ... + 429254.

It is an arithmetic number, because the mean of its divisors is an integer number (1657800).

Almost surely, 2^76820535 is an apocalyptic number.

76820535 is an abundant number, since it is smaller than the sum of its proper divisors (82328265).

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

76820535 is a wasteful number, since it uses less digits than its factorization.

76820535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 76820535 is about 8764.7324545590. The cubic root of 76820535 is about 425.1013091819.

The spelling of 76820535 in words is "seventy-six million, eight hundred twenty thousand, five hundred thirty-five".