85073571 has 42 divisors (see below), whose sum is σ = 140511708. Its totient is φ = 51059160.

The previous prime is 85073567. The next prime is 85073591. The reversal of 85073571 is 17537058.

85073571 is a `hidden beast` number, since 85 + 0 + 7 + 3 + 571 = 666.

It is not a de Polignac number, because 85073571 - 2² = 85073567 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85073531) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 825906 + ... + 826008.

Almost surely, 2^85073571 is an apocalyptic number.

85073571 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

85073571 is a deficient number, since it is larger than the sum of its proper divisors (55438137).

85073571 is an equidigital number, since it uses as much as digits as its factorization.

85073571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 85073571 is about 9223.5335419784. The cubic root of 85073571 is about 439.8097852050.

The spelling of 85073571 in words is "eighty-five million, seventy-three thousand, five hundred seventy-one".