64356401 has 8 divisors (see below), whose sum is σ = 68088000. Its totient is φ = 60659280.

The previous prime is 64356377. The next prime is 64356449. The reversal of 64356401 is 10465346.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64356401 - 2¹⁰ = 64355377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64356451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4730 + ... + 12291.

It is an arithmetic number, because the mean of its divisors is an integer number (8511000).

Almost surely, 2^64356401 is an apocalyptic number.

It is an amenable number.

64356401 is a deficient number, since it is larger than the sum of its proper divisors (3731599).

64356401 is a wasteful number, since it uses less digits than its factorization.

64356401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17239.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 64356401 is about 8022.2441373970. The cubic root of 64356401 is about 400.7411280583.

The spelling of 64356401 in words is "sixty-four million, three hundred fifty-six thousand, four hundred one".