64437343 has 2 divisors, whose sum is σ = 64437344. Its totient is φ = 64437342.

The previous prime is 64437311. The next prime is 64437371. The reversal of 64437343 is 34373446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64437343 - 2⁵ = 64437311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64437299 and 64437308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64437643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32218671 + 32218672.

It is an arithmetic number, because the mean of its divisors is an integer number (32218672).

Almost surely, 2^64437343 is an apocalyptic number.

64437343 is a deficient number, since it is larger than the sum of its proper divisors (1).

64437343 is an equidigital number, since it uses as much as digits as its factorization.

64437343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 34.

The square root of 64437343 is about 8027.2873998630. The cubic root of 64437343 is about 400.9090636929.

The spelling of 64437343 in words is "sixty-four million, four hundred thirty-seven thousand, three hundred forty-three".