3890738 has 4 divisors (see below), whose sum is σ = 5836110. Its totient is φ = 1945368.

The previous prime is 3890737. The next prime is 3890743. The reversal of 3890738 is 8370983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8370983 = 73 ⋅114671.

It can be written as a sum of positive squares in only one way, i.e., 2982529 + 908209 = 1727^2 + 953^2 .

It is not an unprimeable number, because it can be changed into a prime (3890737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972683 + ... + 972686.

Almost surely, 2^3890738 is an apocalyptic number.

3890738 is a deficient number, since it is larger than the sum of its proper divisors (1945372).

3890738 is a wasteful number, since it uses less digits than its factorization.

3890738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945371.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 3890738 is about 1972.4953738856. The cubic root of 3890738 is about 157.2813864622.

The spelling of 3890738 in words is "three million, eight hundred ninety thousand, seven hundred thirty-eight".