85278092 has 6 divisors (see below), whose sum is σ = 149236668. Its totient is φ = 42639044.

The previous prime is 85278077. The next prime is 85278107. The reversal of 85278092 is 29087258.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85278077) and next prime (85278107).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10659758 + ... + 10659765.

It is an arithmetic number, because the mean of its divisors is an integer number (24872778).

Almost surely, 2^85278092 is an apocalyptic number.

It is an amenable number.

85278092 is a deficient number, since it is larger than the sum of its proper divisors (63958576).

85278092 is a wasteful number, since it uses less digits than its factorization.

85278092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21319527 (or 21319525 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 85278092 is about 9234.6137980968. The cubic root of 85278092 is about 440.1619445203.

The spelling of 85278092 in words is "eighty-five million, two hundred seventy-eight thousand, ninety-two".