70984281 has 8 divisors (see below), whose sum is σ = 94700704. Its totient is φ = 47295360.

The previous prime is 70984273. The next prime is 70984283. The reversal of 70984281 is 18248907.

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

It is not a de Polignac number, because 70984281 - 2³ = 70984273 is a prime.

It is a super-2 number, since 2×70984281² = 10077536298173922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70984283) 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, 186 + ... + 11916.

It is an arithmetic number, because the mean of its divisors is an integer number (11837588).

Almost surely, 2^70984281 is an apocalyptic number.

It is an amenable number.

70984281 is a deficient number, since it is larger than the sum of its proper divisors (23716423).

70984281 is a wasteful number, since it uses less digits than its factorization.

70984281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13751.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 70984281 is about 8425.2169704999. The cubic root of 70984281 is about 414.0512142295.

The spelling of 70984281 in words is "seventy million, nine hundred eighty-four thousand, two hundred eighty-one".