70324421 has 2 divisors, whose sum is σ = 70324422. Its totient is φ = 70324420.

The previous prime is 70324403. The next prime is 70324447. The reversal of 70324421 is 12442307.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47761921 + 22562500 = 6911^2 + 4750^2 .

It is a cyclic number.

It is not a de Polignac number, because 70324421 - 2⁶ = 70324357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70324621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35162210 + 35162211.

It is an arithmetic number, because the mean of its divisors is an integer number (35162211).

Almost surely, 2^70324421 is an apocalyptic number.

It is an amenable number.

70324421 is a deficient number, since it is larger than the sum of its proper divisors (1).

70324421 is an equidigital number, since it uses as much as digits as its factorization.

70324421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 70324421 is about 8385.9657166006. The cubic root of 70324421 is about 412.7642305861.

Adding to 70324421 its reverse (12442307), we get a palindrome (82766728).

The spelling of 70324421 in words is "seventy million, three hundred twenty-four thousand, four hundred twenty-one".