76834985 has 12 divisors (see below), whose sum is σ = 97946508. Its totient is φ = 57851136.

The previous prime is 76834981. The next prime is 76834999. The reversal of 76834985 is 58943867.

It can be written as a sum of positive squares in 6 ways, for example, as 5550736 + 71284249 = 2356^2 + 8443^2 .

It is not a de Polignac number, because 76834985 - 2² = 76834981 is a prime.

It is a super-2 number, since 2×76834985² = 11807229839900450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76834981) 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 11 ways as a sum of consecutive naturals, for example, 25142 + ... + 28031.

It is an arithmetic number, because the mean of its divisors is an integer number (8162209).

Almost surely, 2^76834985 is an apocalyptic number.

It is an amenable number.

76834985 is a deficient number, since it is larger than the sum of its proper divisors (21111523).

76834985 is a wasteful number, since it uses less digits than its factorization.

76834985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53212 (or 53195 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The square root of 76834985 is about 8765.5567421585. The cubic root of 76834985 is about 425.1279614688.

It can be divided in two parts, 768 and 34985, that added together give a palindrome (35753).

The spelling of 76834985 in words is "seventy-six million, eight hundred thirty-four thousand, nine hundred eighty-five".