70270331 has 2 divisors, whose sum is σ = 70270332. Its totient is φ = 70270330.

The previous prime is 70270327. The next prime is 70270391. The reversal of 70270331 is 13307207.

It is a weak prime.

It is an emirp because it is prime and its reverse (13307207) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70270331 - 2² = 70270327 is a prime.

It is a super-2 number, since 2×70270331² = 9875838837699122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70270297 and 70270306.

It is not a weakly prime, because it can be changed into another prime (70270391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35135165 + 35135166.

It is an arithmetic number, because the mean of its divisors is an integer number (35135166).

Almost surely, 2^70270331 is an apocalyptic number.

70270331 is a deficient number, since it is larger than the sum of its proper divisors (1).

70270331 is an equidigital number, since it uses as much as digits as its factorization.

70270331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 70270331 is about 8382.7400651577. The cubic root of 70270331 is about 412.6583776289.

Adding to 70270331 its reverse (13307207), we get a palindrome (83577538).

The spelling of 70270331 in words is "seventy million, two hundred seventy thousand, three hundred thirty-one".