85670715 has 48 divisors (see below), whose sum is σ = 155923488. Its totient is φ = 39923712.

The previous prime is 85670687. The next prime is 85670719. The reversal of 85670715 is 51707658.

It is not a de Polignac number, because 85670715 - 2⁹ = 85670203 is a prime.

It is a super-3 number, since 3×85670715³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85670719) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69787 + ... + 71003.

It is an arithmetic number, because the mean of its divisors is an integer number (3248406).

Almost surely, 2^85670715 is an apocalyptic number.

85670715 is a deficient number, since it is larger than the sum of its proper divisors (70252773).

85670715 is a wasteful number, since it uses less digits than its factorization.

85670715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276 (or 1257 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 39.

The square root of 85670715 is about 9255.8476111051. The cubic root of 85670715 is about 440.8364169279.

The spelling of 85670715 in words is "eighty-five million, six hundred seventy thousand, seven hundred fifteen".