64590493 has 8 divisors (see below), whose sum is σ = 72367200. Its totient is φ = 57131280.

The previous prime is 64590469. The next prime is 64590499. The reversal of 64590493 is 39409546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64590493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64590499) 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, 78943 + ... + 79756.

It is an arithmetic number, because the mean of its divisors is an integer number (9045900).

Almost surely, 2^64590493 is an apocalyptic number.

It is an amenable number.

64590493 is a deficient number, since it is larger than the sum of its proper divisors (7776707).

64590493 is a wasteful number, since it uses less digits than its factorization.

64590493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158747.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 64590493 is about 8036.8210755248. The cubic root of 64590493 is about 401.2264295831.

The spelling of 64590493 in words is "sixty-four million, five hundred ninety thousand, four hundred ninety-three".