85276779 has 8 divisors (see below), whose sum is σ = 129945600. Its totient is φ = 48729576.

The previous prime is 85276747. The next prime is 85276781. The reversal of 85276779 is 97767258.

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

It is not a de Polignac number, because 85276779 - 2⁵ = 85276747 is a prime.

It is a super-2 number, since 2×85276779² = 14544258073229682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85276979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2030379 + ... + 2030420.

It is an arithmetic number, because the mean of its divisors is an integer number (16243200).

Almost surely, 2^85276779 is an apocalyptic number.

85276779 is a deficient number, since it is larger than the sum of its proper divisors (44668821).

85276779 is a wasteful number, since it uses less digits than its factorization.

85276779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4060809.

The product of its digits is 1481760, while the sum is 51.

The square root of 85276779 is about 9234.5427065990. The cubic root of 85276779 is about 440.1596854970.

The spelling of 85276779 in words is "eighty-five million, two hundred seventy-six thousand, seven hundred seventy-nine".