85412739 has 8 divisors (see below), whose sum is σ = 115583680. Its totient is φ = 56091816.

The previous prime is 85412737. The next prime is 85412753. The reversal of 85412739 is 93721458.

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

It is not a de Polignac number, because 85412739 - 2¹ = 85412737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85412697 and 85412706.

It is not an unprimeable number, because it can be changed into a prime (85412737) 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, 212269 + ... + 212670.

It is an arithmetic number, because the mean of its divisors is an integer number (14447960).

Almost surely, 2^85412739 is an apocalyptic number.

85412739 is a deficient number, since it is larger than the sum of its proper divisors (30170941).

85412739 is a wasteful number, since it uses less digits than its factorization.

85412739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425009.

The product of its digits is 60480, while the sum is 39.

The square root of 85412739 is about 9241.9012654323. The cubic root of 85412739 is about 440.3934823788.

The spelling of 85412739 in words is "eighty-five million, four hundred twelve thousand, seven hundred thirty-nine".