64740702 has 32 divisors (see below), whose sum is σ = 144254880. Its totient is φ = 19232640.

The previous prime is 64740661. The next prime is 64740727. The reversal of 64740702 is 20704746.

It is a self number, because there is not a number n which added to its sum of digits gives 64740702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12049 + ... + 16572.

It is an arithmetic number, because the mean of its divisors is an integer number (4507965).

Almost surely, 2^64740702 is an apocalyptic number.

64740702 is an abundant number, since it is smaller than the sum of its proper divisors (79514178).

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

64740702 is a wasteful number, since it uses less digits than its factorization.

64740702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28668.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 64740702 is about 8046.1606993646. The cubic root of 64740702 is about 401.5372140316.

The spelling of 64740702 in words is "sixty-four million, seven hundred forty thousand, seven hundred two".