64749610 has 16 divisors (see below), whose sum is σ = 116645256. Its totient is φ = 25878528.

The previous prime is 64749571. The next prime is 64749649. The reversal of 64749610 is 1694746.

It is an interprime number because it is at equal distance from previous prime (64749571) and next prime (64749649).

It can be written as a sum of positive squares in 4 ways, for example, as 12952801 + 51796809 = 3599^2 + 7197^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64749610.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17002 + ... + 20458.

Almost surely, 2^64749610 is an apocalyptic number.

64749610 is a deficient number, since it is larger than the sum of its proper divisors (51895646).

64749610 is a wasteful number, since it uses less digits than its factorization.

64749610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5337.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 64749610 is about 8046.7142362582. The cubic root of 64749610 is about 401.5556296977. Note that the first 3 decimals are identical.

The spelling of 64749610 in words is "sixty-four million, seven hundred forty-nine thousand, six hundred ten".