64742583 has 8 divisors (see below), whose sum is σ = 86368896. Its totient is φ = 43139000.

The previous prime is 64742551. The next prime is 64742591. The reversal of 64742583 is 38524746.

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 64742583 - 2⁵ = 64742551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64742543) 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, 2758 + ... + 11708.

It is an arithmetic number, because the mean of its divisors is an integer number (10796112).

Almost surely, 2^64742583 is an apocalyptic number.

64742583 is a deficient number, since it is larger than the sum of its proper divisors (21626313).

64742583 is a wasteful number, since it uses less digits than its factorization.

64742583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11365.

The product of its digits is 161280, while the sum is 39.

The square root of 64742583 is about 8046.2775865614. The cubic root of 64742583 is about 401.5411027968.

The spelling of 64742583 in words is "sixty-four million, seven hundred forty-two thousand, five hundred eighty-three".