70067091 has 8 divisors (see below), whose sum is σ = 93939664. Its totient is φ = 46452960.

The previous prime is 70067071. The next prime is 70067191. The reversal of 70067091 is 19076007.

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

It is not a de Polignac number, because 70067091 - 2⁶ = 70067027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70067051) 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, 63976 + ... + 65061.

It is an arithmetic number, because the mean of its divisors is an integer number (11742458).

Almost surely, 2^70067091 is an apocalyptic number.

70067091 is a deficient number, since it is larger than the sum of its proper divisors (23872573).

70067091 is a wasteful number, since it uses less digits than its factorization.

70067091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129221.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 70067091 is about 8370.6087592241. The cubic root of 70067091 is about 412.2601551533.

The spelling of 70067091 in words is "seventy million, sixty-seven thousand, ninety-one".