65722607 has 2 divisors, whose sum is σ = 65722608. Its totient is φ = 65722606.

The previous prime is 65722583. The next prime is 65722609. The reversal of 65722607 is 70622756.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65722607 is a prime.

It is a super-2 number, since 2×65722607² = 8638922141752898, which contains 22 as substring.

Together with 65722609, 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 (65722609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32861303 + 32861304.

It is an arithmetic number, because the mean of its divisors is an integer number (32861304).

Almost surely, 2^65722607 is an apocalyptic number.

65722607 is a deficient number, since it is larger than the sum of its proper divisors (1).

65722607 is an equidigital number, since it uses as much as digits as its factorization.

65722607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 65722607 is about 8106.9480694032. The cubic root of 65722607 is about 403.5570394968.

The spelling of 65722607 in words is "sixty-five million, seven hundred twenty-two thousand, six hundred seven".