3784750066 has 4 divisors (see below), whose sum is σ = 5677125102. Its totient is φ = 1892375032.

The previous prime is 3784750061. The next prime is 3784750093. The reversal of 3784750066 is 6600574873.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3728934225 + 55815841 = 61065^2 + 7471^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3784749998 and 3784750025.

It is not an unprimeable number, because it can be changed into a prime (3784750061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 946187515 + ... + 946187518.

Almost surely, 2^3784750066 is an apocalyptic number.

3784750066 is a deficient number, since it is larger than the sum of its proper divisors (1892375036).

3784750066 is a wasteful number, since it uses less digits than its factorization.

3784750066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892375035.

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 3784750066 is about 61520.3223821202. The cubic root of 3784750066 is about 1558.4004624448.

The spelling of 3784750066 in words is "three billion, seven hundred eighty-four million, seven hundred fifty thousand, sixty-six".