64954819 has 2 divisors, whose sum is σ = 64954820. Its totient is φ = 64954818.

The previous prime is 64954801. The next prime is 64954823. The reversal of 64954819 is 91845946.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64954819 - 2¹³ = 64946627 is a prime.

It is a super-2 number, since 2×64954819² = 8438257022645522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64954849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32477409 + 32477410.

It is an arithmetic number, because the mean of its divisors is an integer number (32477410).

Almost surely, 2^64954819 is an apocalyptic number.

64954819 is a deficient number, since it is larger than the sum of its proper divisors (1).

64954819 is an equidigital number, since it uses as much as digits as its factorization.

64954819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 46.

The square root of 64954819 is about 8059.4552545442. The cubic root of 64954819 is about 401.9793950810.

The spelling of 64954819 in words is "sixty-four million, nine hundred fifty-four thousand, eight hundred nineteen".