70083561 has 8 divisors (see below), whose sum is σ = 93710880. Its totient is φ = 46589312.

The previous prime is 70083557. The next prime is 70083589. The reversal of 70083561 is 16538007.

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 70083561 - 2² = 70083557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70083521) 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, 32031 + ... + 34148.

It is an arithmetic number, because the mean of its divisors is an integer number (11713860).

Almost surely, 2^70083561 is an apocalyptic number.

It is an amenable number.

70083561 is a deficient number, since it is larger than the sum of its proper divisors (23627319).

70083561 is a wasteful number, since it uses less digits than its factorization.

70083561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66535.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 70083561 is about 8371.5925008328. The cubic root of 70083561 is about 412.2924546381.

The spelling of 70083561 in words is "seventy million, eighty-three thousand, five hundred sixty-one".