70442791 has 2 divisors, whose sum is σ = 70442792. Its totient is φ = 70442790.

The previous prime is 70442719. The next prime is 70442803. The reversal of 70442791 is 19724407.

Together with previous prime (70442719) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70442791 - 2⁷ = 70442663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70442891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35221395 + 35221396.

It is an arithmetic number, because the mean of its divisors is an integer number (35221396).

Almost surely, 2^70442791 is an apocalyptic number.

70442791 is a deficient number, since it is larger than the sum of its proper divisors (1).

70442791 is an equidigital number, since it uses as much as digits as its factorization.

70442791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 70442791 is about 8393.0203740966. The cubic root of 70442791 is about 412.9956888942.

The spelling of 70442791 in words is "seventy million, four hundred forty-two thousand, seven hundred ninety-one".