64949628 has 24 divisors (see below), whose sum is σ = 154035280. Its totient is φ = 21294720.

The previous prime is 64949627. The next prime is 64949641. The reversal of 64949628 is 82694946.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64949623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43633 + ... + 45096.

Almost surely, 2^64949628 is an apocalyptic number.

It is an amenable number.

64949628 is an abundant number, since it is smaller than the sum of its proper divisors (89085652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64949628 is a wasteful number, since it uses less digits than its factorization.

64949628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88797 (or 88795 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The square root of 64949628 is about 8059.1332040115. The cubic root of 64949628 is about 401.9686864548.

The spelling of 64949628 in words is "sixty-four million, nine hundred forty-nine thousand, six hundred twenty-eight".