70984881 has 24 divisors (see below), whose sum is σ = 112592064. Its totient is φ = 42737760.

The previous prime is 70984871. The next prime is 70984883. The reversal of 70984881 is 18848907.

It is not a de Polignac number, because 70984881 - 2⁹ = 70984369 is a prime.

It is a super-2 number, since 2×70984881² = 10077706661168322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70984883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13260 + ... + 17826.

It is an arithmetic number, because the mean of its divisors is an integer number (4691336).

Almost surely, 2^70984881 is an apocalyptic number.

It is an amenable number.

70984881 is a deficient number, since it is larger than the sum of its proper divisors (41607183).

70984881 is a wasteful number, since it uses less digits than its factorization.

70984881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4741 (or 4738 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 70984881 is about 8425.2525778163. The cubic root of 70984881 is about 414.0523808259.

The spelling of 70984881 in words is "seventy million, nine hundred eighty-four thousand, eight hundred eighty-one".