64346172 has 24 divisors (see below), whose sum is σ = 163790592. Its totient is φ = 19498800.

The previous prime is 64346171. The next prime is 64346213. The reversal of 64346172 is 27164346.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64346171) 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, 243604 + ... + 243867.

It is an arithmetic number, because the mean of its divisors is an integer number (6824608).

Almost surely, 2^64346172 is an apocalyptic number.

It is an amenable number.

64346172 is an abundant number, since it is smaller than the sum of its proper divisors (99444420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64346172 is a wasteful number, since it uses less digits than its factorization.

64346172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487489 (or 487487 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 64346172 is about 8021.6065722522. The cubic root of 64346172 is about 400.7198952664.

The spelling of 64346172 in words is "sixty-four million, three hundred forty-six thousand, one hundred seventy-two".