70093631 has 2 divisors, whose sum is σ = 70093632. Its totient is φ = 70093630.

The previous prime is 70093589. The next prime is 70093633. The reversal of 70093631 is 13639007.

It is a strong prime.

It is an emirp because it is prime and its reverse (13639007) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70093631 is a prime.

It is a super-2 number, since 2×70093631² = 9826234213528322, which contains 22 as substring.

Together with 70093633, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 70093594 and 70093603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70093633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35046815 + 35046816.

It is an arithmetic number, because the mean of its divisors is an integer number (35046816).

Almost surely, 2^70093631 is an apocalyptic number.

70093631 is a deficient number, since it is larger than the sum of its proper divisors (1).

70093631 is an equidigital number, since it uses as much as digits as its factorization.

70093631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 70093631 is about 8372.1939179644. The cubic root of 70093631 is about 412.3122005249.

The spelling of 70093631 in words is "seventy million, ninety-three thousand, six hundred thirty-one".