64212017 has 4 divisors (see below), whose sum is σ = 64270320. Its totient is φ = 64153716.

The previous prime is 64212007. The next prime is 64212047. The reversal of 64212017 is 71021246.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71021246 = 2 ⋅35510623.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64212017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64211983 and 64212001.

It is not an unprimeable number, because it can be changed into a prime (64212007) 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, 27467 + ... + 29712.

It is an arithmetic number, because the mean of its divisors is an integer number (16067580).

Almost surely, 2^64212017 is an apocalyptic number.

It is an amenable number.

64212017 is a deficient number, since it is larger than the sum of its proper divisors (58303).

64212017 is a wasteful number, since it uses less digits than its factorization.

64212017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58302.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 64212017 is about 8013.2401062242. The cubic root of 64212017 is about 400.4412152272.

The spelling of 64212017 in words is "sixty-four million, two hundred twelve thousand, seventeen".