64398941 has 8 divisors (see below), whose sum is σ = 68282424. Its totient is φ = 60526080.

The previous prime is 64398931. The next prime is 64398947. The reversal of 64398941 is 14989346.

It can be written as a sum of positive squares in 4 ways, for example, as 2839225 + 61559716 = 1685^2 + 7846^2 .

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 64398941 - 2⁶ = 64398877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64398892 and 64398901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64398947) 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, 12281 + ... + 16721.

It is an arithmetic number, because the mean of its divisors is an integer number (8535303).

Almost surely, 2^64398941 is an apocalyptic number.

It is an amenable number.

64398941 is a deficient number, since it is larger than the sum of its proper divisors (3883483).

64398941 is a wasteful number, since it uses less digits than its factorization.

64398941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5311.

The product of its digits is 186624, while the sum is 44.

The square root of 64398941 is about 8024.8950771957. The cubic root of 64398941 is about 400.8294061084.

The spelling of 64398941 in words is "sixty-four million, three hundred ninety-eight thousand, nine hundred forty-one".