64060381 has 16 divisors (see below), whose sum is σ = 84072960. Its totient is φ = 47288880.

The previous prime is 64060379. The next prime is 64060387. The reversal of 64060381 is 18306046.

It is a cyclic number.

It is not a de Polignac number, because 64060381 - 2¹ = 64060379 is a prime.

It is a super-2 number, since 2×64060381² = 8207464827730322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64060387) 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, 20431 + ... + 23356.

It is an arithmetic number, because the mean of its divisors is an integer number (5254560).

Almost surely, 2^64060381 is an apocalyptic number.

It is an amenable number.

64060381 is a deficient number, since it is larger than the sum of its proper divisors (20012579).

64060381 is a wasteful number, since it uses less digits than its factorization.

64060381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43824.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 64060381 is about 8003.7729228158. The cubic root of 64060381 is about 400.1257542106.

The spelling of 64060381 in words is "sixty-four million, sixty thousand, three hundred eighty-one".