85615378 has 8 divisors (see below), whose sum is σ = 128463372. Its totient is φ = 42794256.

The previous prime is 85615363. The next prime is 85615393. The reversal of 85615378 is 87351658.

It is an interprime number because it is at equal distance from previous prime (85615363) and next prime (85615393).

It can be written as a sum of positive squares in 2 ways, for example, as 85433049 + 182329 = 9243^2 + 427^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6276 + ... + 14512.

Almost surely, 2^85615378 is an apocalyptic number.

85615378 is a deficient number, since it is larger than the sum of its proper divisors (42847994).

85615378 is a wasteful number, since it uses less digits than its factorization.

85615378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13436.

The product of its digits is 201600, while the sum is 43.

The square root of 85615378 is about 9252.8578288008. The cubic root of 85615378 is about 440.7414804841.

The spelling of 85615378 in words is "eighty-five million, six hundred fifteen thousand, three hundred seventy-eight".