393070081 has 8 divisors (see below), whose sum is σ = 414230400. Its totient is φ = 371957040.

The previous prime is 393070061. The next prime is 393070087. The reversal of 393070081 is 180070393.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-393070081 is a prime.

It is a super-2 number, since 2×393070081² = 309008177154693122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (393070087) 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, 5955 + ... + 28663.

It is an arithmetic number, because the mean of its divisors is an integer number (51778800).

Almost surely, 2^393070081 is an apocalyptic number.

It is an amenable number.

393070081 is a deficient number, since it is larger than the sum of its proper divisors (21160319).

393070081 is a wasteful number, since it uses less digits than its factorization.

393070081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23639.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 393070081 is about 19825.9950822147. The cubic root of 393070081 is about 732.5264814323.

The spelling of 393070081 in words is "three hundred ninety-three million, seventy thousand, eighty-one".