64970383 has 2 divisors, whose sum is σ = 64970384. Its totient is φ = 64970382.

The previous prime is 64970359. The next prime is 64970401. The reversal of 64970383 is 38307946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64970383 - 2²¹ = 62873231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64970303) 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, 32485191 + 32485192.

It is an arithmetic number, because the mean of its divisors is an integer number (32485192).

Almost surely, 2^64970383 is an apocalyptic number.

64970383 is a deficient number, since it is larger than the sum of its proper divisors (1).

64970383 is an equidigital number, since it uses as much as digits as its factorization.

64970383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 64970383 is about 8060.4207706546. The cubic root of 64970383 is about 402.0114989739.

The spelling of 64970383 in words is "sixty-four million, nine hundred seventy thousand, three hundred eighty-three".