64422377 has 2 divisors, whose sum is σ = 64422378. Its totient is φ = 64422376.

The previous prime is 64422361. The next prime is 64422409. The reversal of 64422377 is 77322446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40500496 + 23921881 = 6364^2 + 4891^2 .

It is a cyclic number.

It is not a de Polignac number, because 64422377 - 2⁴ = 64422361 is a prime.

It is not a weakly prime, because it can be changed into another prime (64422077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32211188 + 32211189.

It is an arithmetic number, because the mean of its divisors is an integer number (32211189).

Almost surely, 2^64422377 is an apocalyptic number.

It is an amenable number.

64422377 is a deficient number, since it is larger than the sum of its proper divisors (1).

64422377 is an equidigital number, since it uses as much as digits as its factorization.

64422377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 35.

The square root of 64422377 is about 8026.3551503780. The cubic root of 64422377 is about 400.8780233606.

The spelling of 64422377 in words is "sixty-four million, four hundred twenty-two thousand, three hundred seventy-seven".