64163470 has 16 divisors (see below), whose sum is σ = 131993568. Its totient is φ = 21998880.

The previous prime is 64163467. The next prime is 64163471. The reversal of 64163470 is 7436146.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64163471) 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, 458241 + ... + 458380.

It is an arithmetic number, because the mean of its divisors is an integer number (8249598).

Almost surely, 2^64163470 is an apocalyptic number.

64163470 is an abundant number, since it is smaller than the sum of its proper divisors (67830098).

64163470 is a wasteful number, since it uses less digits than its factorization.

64163470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916635.

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

The square root of 64163470 is about 8010.2103592852. The cubic root of 64163470 is about 400.3402729537.

The spelling of 64163470 in words is "sixty-four million, one hundred sixty-three thousand, four hundred seventy".