64276213 has 4 divisors (see below), whose sum is σ = 65643840. Its totient is φ = 62908588.

The previous prime is 64276169. The next prime is 64276253. The reversal of 64276213 is 31267246.

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 64276213 - 2¹⁷ = 64145141 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 (64276253) 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, 683743 + ... + 683836.

It is an arithmetic number, because the mean of its divisors is an integer number (16410960).

Almost surely, 2^64276213 is an apocalyptic number.

It is an amenable number.

64276213 is a deficient number, since it is larger than the sum of its proper divisors (1367627).

64276213 is a wasteful number, since it uses less digits than its factorization.

64276213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367626.

The product of its digits is 12096, while the sum is 31.

The square root of 64276213 is about 8017.2447262136. The cubic root of 64276213 is about 400.5746178904.

The spelling of 64276213 in words is "sixty-four million, two hundred seventy-six thousand, two hundred thirteen".