64784038 has 16 divisors (see below), whose sum is σ = 106608960. Its totient is φ = 29281000.

The previous prime is 64784033. The next prime is 64784039. The reversal of 64784038 is 83048746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64784033) 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, 4288 + ... + 12163.

It is an arithmetic number, because the mean of its divisors is an integer number (6663060).

Almost surely, 2^64784038 is an apocalyptic number.

64784038 is a deficient number, since it is larger than the sum of its proper divisors (41824922).

64784038 is a wasteful number, since it uses less digits than its factorization.

64784038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16643.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 64784038 is about 8048.8532102406. The cubic root of 64784038 is about 401.6267874374.

The spelling of 64784038 in words is "sixty-four million, seven hundred eighty-four thousand, thirty-eight".