64880593 has 4 divisors (see below), whose sum is σ = 66389488. Its totient is φ = 63371700.

The previous prime is 64880587. The next prime is 64880657. The reversal of 64880593 is 39508846.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64880593 - 2⁵ = 64880561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 1508851 = 64880593 / (6 + 4 + 8 + 8 + 0 + 5 + 9 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64880503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754383 + ... + 754468.

It is an arithmetic number, because the mean of its divisors is an integer number (16597372).

Almost surely, 2^64880593 is an apocalyptic number.

It is an amenable number.

64880593 is a deficient number, since it is larger than the sum of its proper divisors (1508895).

64880593 is a wasteful number, since it uses less digits than its factorization.

64880593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508894.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 64880593 is about 8054.8490364500. The cubic root of 64880593 is about 401.8262183774.

The spelling of 64880593 in words is "sixty-four million, eight hundred eighty thousand, five hundred ninety-three".