70855869 has 8 divisors (see below), whose sum is σ = 107970880. Its totient is φ = 40489056.

The previous prime is 70855867. The next prime is 70855871. The reversal of 70855869 is 96855807.

It is an interprime number because it is at equal distance from previous prime (70855867) and next prime (70855871).

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

It is not a de Polignac number, because 70855869 - 2¹ = 70855867 is a prime.

It is a super-2 number, since 2×70855869² = 10041108343490322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70855861) 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, 1687024 + ... + 1687065.

It is an arithmetic number, because the mean of its divisors is an integer number (13496360).

Almost surely, 2^70855869 is an apocalyptic number.

It is an amenable number.

70855869 is a deficient number, since it is larger than the sum of its proper divisors (37115011).

70855869 is a wasteful number, since it uses less digits than its factorization.

70855869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374099.

The product of its (nonzero) digits is 604800, while the sum is 48.

The square root of 70855869 is about 8417.5928269310. The cubic root of 70855869 is about 413.8013878483.

The spelling of 70855869 in words is "seventy million, eight hundred fifty-five thousand, eight hundred sixty-nine".