64169998 has 8 divisors (see below), whose sum is σ = 96324192. Its totient is φ = 32061936.

The previous prime is 64169983. The next prime is 64170077. The reversal of 64169998 is 89996146.

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

It is a congruent number.

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, 7815 + ... + 13762.

It is an arithmetic number, because the mean of its divisors is an integer number (12040524).

Almost surely, 2^64169998 is an apocalyptic number.

64169998 is a deficient number, since it is larger than the sum of its proper divisors (32154194).

64169998 is a wasteful number, since it uses less digits than its factorization.

64169998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23066.

The product of its digits is 839808, while the sum is 52.

The square root of 64169998 is about 8010.6178288569. The cubic root of 64169998 is about 400.3538493842.

The spelling of 64169998 in words is "sixty-four million, one hundred sixty-nine thousand, nine hundred ninety-eight".