64949398 has 16 divisors (see below), whose sum is σ = 99572400. Its totient is φ = 31765536.

The previous prime is 64949389. The next prime is 64949399. The reversal of 64949398 is 89394946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64949399) 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, 18340 + ... + 21592.

It is an arithmetic number, because the mean of its divisors is an integer number (6223275).

Almost surely, 2^64949398 is an apocalyptic number.

64949398 is a deficient number, since it is larger than the sum of its proper divisors (34623002).

64949398 is a wasteful number, since it uses less digits than its factorization.

64949398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3471.

The product of its digits is 1679616, while the sum is 52.

The square root of 64949398 is about 8059.1189344742. The cubic root of 64949398 is about 401.9682119696.

The spelling of 64949398 in words is "sixty-four million, nine hundred forty-nine thousand, three hundred ninety-eight".