64742371 has 2 divisors, whose sum is σ = 64742372. Its totient is φ = 64742370.

The previous prime is 64742347. The next prime is 64742387. The reversal of 64742371 is 17324746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64742371 - 2⁵ = 64742339 is a prime.

It is not a weakly prime, because it can be changed into another prime (64740371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32371185 + 32371186.

It is an arithmetic number, because the mean of its divisors is an integer number (32371186).

Almost surely, 2^64742371 is an apocalyptic number.

64742371 is a deficient number, since it is larger than the sum of its proper divisors (1).

64742371 is an equidigital number, since it uses as much as digits as its factorization.

64742371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 34.

The square root of 64742371 is about 8046.2644127570. The cubic root of 64742371 is about 401.5406645134.

The spelling of 64742371 in words is "sixty-four million, seven hundred forty-two thousand, three hundred seventy-one".