70237919 has 2 divisors, whose sum is σ = 70237920. Its totient is φ = 70237918.

The previous prime is 70237861. The next prime is 70237933. The reversal of 70237919 is 91973207.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70237919 is a prime.

It is a super-2 number, since 2×70237919² = 9866730530901122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70237939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35118959 + 35118960.

It is an arithmetic number, because the mean of its divisors is an integer number (35118960).

Almost surely, 2^70237919 is an apocalyptic number.

70237919 is a deficient number, since it is larger than the sum of its proper divisors (1).

70237919 is an equidigital number, since it uses as much as digits as its factorization.

70237919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 70237919 is about 8380.8065840944. The cubic root of 70237919 is about 412.5949220183.

The spelling of 70237919 in words is "seventy million, two hundred thirty-seven thousand, nine hundred nineteen".