64782941 has 2 divisors, whose sum is σ = 64782942. Its totient is φ = 64782940.

The previous prime is 64782931. The next prime is 64782943. The reversal of 64782941 is 14928746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63840100 + 942841 = 7990^2 + 971^2 .

It is a cyclic number.

It is not a de Polignac number, because 64782941 - 2²² = 60588637 is a prime.

Together with 64782943, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64782943) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32391470 + 32391471.

It is an arithmetic number, because the mean of its divisors is an integer number (32391471).

Almost surely, 2^64782941 is an apocalyptic number.

It is an amenable number.

64782941 is a deficient number, since it is larger than the sum of its proper divisors (1).

64782941 is an equidigital number, since it uses as much as digits as its factorization.

64782941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 64782941 is about 8048.7850635981. The cubic root of 64782941 is about 401.6245204846.

The spelling of 64782941 in words is "sixty-four million, seven hundred eighty-two thousand, nine hundred forty-one".