86870835 has 24 divisors (see below), whose sum is σ = 155435904. Its totient is φ = 44835840.

The previous prime is 86870827. The next prime is 86870881. The reversal of 86870835 is 53807868.

It is not a de Polignac number, because 86870835 - 2³ = 86870827 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29742 + ... + 32531.

It is an arithmetic number, because the mean of its divisors is an integer number (6476496).

It is the magic constant of a 558 × 558 magic square.

Almost surely, 2^86870835 is an apocalyptic number.

86870835 is a deficient number, since it is larger than the sum of its proper divisors (68565069).

86870835 is a wasteful number, since it uses less digits than its factorization.

86870835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62315 (or 62312 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 86870835 is about 9320.4525104739. The cubic root of 86870835 is about 442.8853676327.

The spelling of 86870835 in words is "eighty-six million, eight hundred seventy thousand, eight hundred thirty-five".