64429748 has 6 divisors (see below), whose sum is σ = 112752066. Its totient is φ = 32214872.

The previous prime is 64429747. The next prime is 64429753. The reversal of 64429748 is 84792446.

It can be written as a sum of positive squares in only one way, i.e., 52678564 + 11751184 = 7258^2 + 3428^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64429699 and 64429708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64429747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8053715 + ... + 8053722.

It is an arithmetic number, because the mean of its divisors is an integer number (18792011).

Almost surely, 2^64429748 is an apocalyptic number.

It is an amenable number.

64429748 is a deficient number, since it is larger than the sum of its proper divisors (48322318).

64429748 is a wasteful number, since it uses less digits than its factorization.

64429748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16107441 (or 16107439 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 64429748 is about 8026.8143120419. The cubic root of 64429748 is about 400.8933118331.

The spelling of 64429748 in words is "sixty-four million, four hundred twenty-nine thousand, seven hundred forty-eight".