64195930 has 8 divisors (see below), whose sum is σ = 115552692. Its totient is φ = 25678368.

The previous prime is 64195897. The next prime is 64195949. The reversal of 64195930 is 3959146.

It can be written as a sum of positive squares in 2 ways, for example, as 53100369 + 11095561 = 7287^2 + 3331^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×64195930² = 8242234857129800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64195930.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3209787 + ... + 3209806.

Almost surely, 2^64195930 is an apocalyptic number.

64195930 is a deficient number, since it is larger than the sum of its proper divisors (51356762).

64195930 is a wasteful number, since it uses less digits than its factorization.

64195930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6419600.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 64195930 is about 8012.2362671105. The cubic root of 64195930 is about 400.4077716644.

The spelling of 64195930 in words is "sixty-four million, one hundred ninety-five thousand, nine hundred thirty".