65442997 has 2 divisors, whose sum is σ = 65442998. Its totient is φ = 65442996.

The previous prime is 65442989. The next prime is 65443031. The reversal of 65442997 is 79924456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64866916 + 576081 = 8054^2 + 759^2 .

It is a cyclic number.

It is not a de Polignac number, because 65442997 - 2³ = 65442989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65442907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32721498 + 32721499.

It is an arithmetic number, because the mean of its divisors is an integer number (32721499).

Almost surely, 2^65442997 is an apocalyptic number.

It is an amenable number.

65442997 is a deficient number, since it is larger than the sum of its proper divisors (1).

65442997 is an equidigital number, since it uses as much as digits as its factorization.

65442997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The square root of 65442997 is about 8089.6846044824. The cubic root of 65442997 is about 402.9839288211.

The spelling of 65442997 in words is "sixty-five million, four hundred forty-two thousand, nine hundred ninety-seven".