70861 has 8 divisors (see below), whose sum is σ = 82944. Its totient is φ = 59280.

The previous prime is 70853. The next prime is 70867. The reversal of 70861 is 16807.

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

It is a cyclic number.

It is not a de Polignac number, because 70861 - 2³ = 70853 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276 + ... + 466.

It is an arithmetic number, because the mean of its divisors is an integer number (10368).

2⁷⁰⁸⁶¹ is an apocalyptic number.

It is an amenable number.

70861 is a deficient number, since it is larger than the sum of its proper divisors (12083).

70861 is a wasteful number, since it uses less digits than its factorization.

70861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 70861 is about 266.1972952530. The cubic root of 70861 is about 41.3811376029.

The spelling of 70861 in words is "seventy thousand, eight hundred sixty-one".