64299478 has 8 divisors (see below), whose sum is σ = 98501472. Its totient is φ = 31465656.

The previous prime is 64299463. The next prime is 64299479. The reversal of 64299478 is 87499246.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64299479) 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, 341925 + ... + 342112.

It is an arithmetic number, because the mean of its divisors is an integer number (12312684).

Almost surely, 2^64299478 is an apocalyptic number.

64299478 is a deficient number, since it is larger than the sum of its proper divisors (34201994).

64299478 is a wasteful number, since it uses less digits than its factorization.

64299478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684086.

The product of its digits is 870912, while the sum is 49.

The square root of 64299478 is about 8018.6955298228. The cubic root of 64299478 is about 400.6229418550.

The spelling of 64299478 in words is "sixty-four million, two hundred ninety-nine thousand, four hundred seventy-eight".