64203345 has 12 divisors (see below), whose sum is σ = 111285876. Its totient is φ = 34241760.

The previous prime is 64203341. The next prime is 64203389. The reversal of 64203345 is 54330246.

It can be written as a sum of positive squares in 2 ways, for example, as 31404816 + 32798529 = 5604^2 + 5727^2 .

It is not a de Polignac number, because 64203345 - 2² = 64203341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64203341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 713326 + ... + 713415.

It is an arithmetic number, because the mean of its divisors is an integer number (9273823).

Almost surely, 2^64203345 is an apocalyptic number.

It is an amenable number.

64203345 is a deficient number, since it is larger than the sum of its proper divisors (47082531).

64203345 is a wasteful number, since it uses less digits than its factorization.

64203345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426752 (or 1426749 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 64203345 is about 8012.6989834886. The cubic root of 64203345 is about 400.4231875395.

The spelling of 64203345 in words is "sixty-four million, two hundred three thousand, three hundred forty-five".