70854561 has 16 divisors (see below), whose sum is σ = 108357120. Its totient is φ = 45712080.

The previous prime is 70854533. The next prime is 70854599. The reversal of 70854561 is 16545807.

It is not a de Polignac number, because 70854561 - 2¹⁰ = 70853537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70854061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41490 + ... + 43163.

It is an arithmetic number, because the mean of its divisors is an integer number (6772320).

Almost surely, 2^70854561 is an apocalyptic number.

It is an amenable number.

70854561 is a deficient number, since it is larger than the sum of its proper divisors (37502559).

70854561 is a wasteful number, since it uses less digits than its factorization.

70854561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84693 (or 84687 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 70854561 is about 8417.5151321515. The cubic root of 70854561 is about 413.7988415734.

The spelling of 70854561 in words is "seventy million, eight hundred fifty-four thousand, five hundred sixty-one".