85776629 has 4 divisors (see below), whose sum is σ = 86069676. Its totient is φ = 85483584.

The previous prime is 85776617. The next prime is 85776641. The reversal of 85776629 is 92667758.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (85776617) and next prime (85776641).

It can be written as a sum of positive squares in 2 ways, for example, as 70174129 + 15602500 = 8377^2 + 3950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85776629 is a prime.

It is a super-3 number, since 3×85776629³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85776829) 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, 146084 + ... + 146669.

It is an arithmetic number, because the mean of its divisors is an integer number (21517419).

Almost surely, 2^85776629 is an apocalyptic number.

It is an amenable number.

85776629 is a deficient number, since it is larger than the sum of its proper divisors (293047).

85776629 is a wasteful number, since it uses less digits than its factorization.

85776629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293046.

The product of its digits is 1270080, while the sum is 50.

The square root of 85776629 is about 9261.5673079668. The cubic root of 85776629 is about 441.0180095929.

The spelling of 85776629 in words is "eighty-five million, seven hundred seventy-six thousand, six hundred twenty-nine".