64873101 has 4 divisors (see below), whose sum is σ = 86497472. Its totient is φ = 43248732.

The previous prime is 64873093. The next prime is 64873117. The reversal of 64873101 is 10137846.

It is a happy number.

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 not a de Polignac number, because 64873101 - 2³ = 64873093 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 (64873121) 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, 10812181 + ... + 10812186.

It is an arithmetic number, because the mean of its divisors is an integer number (21624368).

Almost surely, 2^64873101 is an apocalyptic number.

It is an amenable number.

64873101 is a deficient number, since it is larger than the sum of its proper divisors (21624371).

64873101 is a wasteful number, since it uses less digits than its factorization.

64873101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21624370.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 64873101 is about 8054.3839615454. The cubic root of 64873101 is about 401.8107509997.

The spelling of 64873101 in words is "sixty-four million, eight hundred seventy-three thousand, one hundred one".