64213276 has 24 divisors (see below), whose sum is σ = 118705664. Its totient is φ = 30345840.

The previous prime is 64213273. The next prime is 64213283. The reversal of 64213276 is 67231246.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64213271) 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, 690 + ... + 11353.

Almost surely, 2^64213276 is an apocalyptic number.

It is an amenable number.

64213276 is a deficient number, since it is larger than the sum of its proper divisors (54492388).

64213276 is a wasteful number, since it uses less digits than its factorization.

64213276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12121 (or 12119 counting only the distinct ones).

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

The square root of 64213276 is about 8013.3186633255. The cubic root of 64213276 is about 400.4438323500.

The spelling of 64213276 in words is "sixty-four million, two hundred thirteen thousand, two hundred seventy-six".