64423401 has 16 divisors (see below), whose sum is σ = 100823424. Its totient is φ = 35817984.

The previous prime is 64423399. The next prime is 64423427. The reversal of 64423401 is 10432446.

It is not a de Polignac number, because 64423401 - 2¹ = 64423399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64423201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40680 + ... + 42233.

It is an arithmetic number, because the mean of its divisors is an integer number (6301464).

Almost surely, 2^64423401 is an apocalyptic number.

It is an amenable number.

64423401 is a deficient number, since it is larger than the sum of its proper divisors (36400023).

64423401 is a wasteful number, since it uses less digits than its factorization.

64423401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82960.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 64423401 is about 8026.4189399757. The cubic root of 64423401 is about 400.8801473478.

Adding to 64423401 its reverse (10432446), we get a palindrome (74855847).

The spelling of 64423401 in words is "sixty-four million, four hundred twenty-three thousand, four hundred one".