64651741 has 8 divisors (see below), whose sum is σ = 80604864. Its totient is φ = 50377920.

The previous prime is 64651739. The next prime is 64651789. The reversal of 64651741 is 14715646.

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 64651741 - 2¹ = 64651739 is a prime.

It is a super-2 number, since 2×64651741² = 8359695228662162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64651697 and 64651706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64651141) 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, 419740 + ... + 419893.

It is an arithmetic number, because the mean of its divisors is an integer number (10075608).

Almost surely, 2^64651741 is an apocalyptic number.

It is an amenable number.

64651741 is a deficient number, since it is larger than the sum of its proper divisors (15953123).

64651741 is a wasteful number, since it uses less digits than its factorization.

64651741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839651.

The product of its digits is 20160, while the sum is 34.

The square root of 64651741 is about 8040.6306344714. The cubic root of 64651741 is about 401.3532106400.

The spelling of 64651741 in words is "sixty-four million, six hundred fifty-one thousand, seven hundred forty-one".