64196767 has 2 divisors, whose sum is σ = 64196768. Its totient is φ = 64196766.

The previous prime is 64196761. The next prime is 64196771. The reversal of 64196767 is 76769146.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64196767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64196761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32098383 + 32098384.

It is an arithmetic number, because the mean of its divisors is an integer number (32098384).

Almost surely, 2^64196767 is an apocalyptic number.

64196767 is a deficient number, since it is larger than the sum of its proper divisors (1).

64196767 is an equidigital number, since it uses as much as digits as its factorization.

64196767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 46.

The square root of 64196767 is about 8012.2884995487. The cubic root of 64196767 is about 400.4095118570.

The spelling of 64196767 in words is "sixty-four million, one hundred ninety-six thousand, seven hundred sixty-seven".