64771741 has 16 divisors (see below), whose sum is σ = 70812160. Its totient is φ = 59019840.

The previous prime is 64771739. The next prime is 64771747. The reversal of 64771741 is 14717746.

It is a cyclic number.

It is not a de Polignac number, because 64771741 - 2¹ = 64771739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64771741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64771747) 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, 162955 + ... + 163351.

It is an arithmetic number, because the mean of its divisors is an integer number (4425760).

Almost surely, 2^64771741 is an apocalyptic number.

It is an amenable number.

64771741 is a deficient number, since it is larger than the sum of its proper divisors (6040419).

64771741 is a wasteful number, since it uses less digits than its factorization.

64771741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724.

The product of its digits is 32928, while the sum is 37.

The square root of 64771741 is about 8048.0892763438. The cubic root of 64771741 is about 401.6013741964.

The spelling of 64771741 in words is "sixty-four million, seven hundred seventy-one thousand, seven hundred forty-one".