964422421 has 2 divisors, whose sum is σ = 964422422. Its totient is φ = 964422420.

The previous prime is 964422419. The next prime is 964422443. The reversal of 964422421 is 124224469.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 502387396 + 462035025 = 22414^2 + 21495^2 .

It is a cyclic number.

It is not a de Polignac number, because 964422421 - 2¹ = 964422419 is a prime.

It is a super-2 number, since 2×964422421² = 1860221212255002482, which contains 22 as substring.

Together with 964422419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (964422451) 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, 482211210 + 482211211.

It is an arithmetic number, because the mean of its divisors is an integer number (482211211).

Almost surely, 2^964422421 is an apocalyptic number.

It is an amenable number.

964422421 is a deficient number, since it is larger than the sum of its proper divisors (1).

964422421 is an equidigital number, since it uses as much as digits as its factorization.

964422421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 34.

The square root of 964422421 is about 31055.1512796187. The cubic root of 964422421 is about 987.9973190358.

The spelling of 964422421 in words is "nine hundred sixty-four million, four hundred twenty-two thousand, four hundred twenty-one".