85437379 has 6 divisors (see below), whose sum is σ = 86213036. Its totient is φ = 84668640.

The previous prime is 85437377. The next prime is 85437383. The reversal of 85437379 is 97373458.

It is a happy number.

It is not a de Polignac number, because 85437379 - 2¹ = 85437377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85437377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9424 + ... + 16114.

Almost surely, 2^85437379 is an apocalyptic number.

85437379 is a deficient number, since it is larger than the sum of its proper divisors (775657).

85437379 is an equidigital number, since it uses as much as digits as its factorization.

85437379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6917 (or 6804 counting only the distinct ones).

The product of its digits is 635040, while the sum is 46.

The square root of 85437379 is about 9243.2342283424. The cubic root of 85437379 is about 440.4358267732.

The spelling of 85437379 in words is "eighty-five million, four hundred thirty-seven thousand, three hundred seventy-nine".