3897650 has 24 divisors (see below), whose sum is σ = 7315380. Its totient is φ = 1544960.

The previous prime is 3897637. The next prime is 3897653. The reversal of 3897650 is 567983.

It can be written as a sum of positive squares in 6 ways, for example, as 908209 + 2989441 = 953^2 + 1729^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 3³ + 8⁷ + 9² + 7⁶ + 6⁸ + 5⁵ + 0 .

It is not an unprimeable number, because it can be changed into a prime (3897653) 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 in 11 ways as a sum of consecutive naturals, for example, 6566 + ... + 7134.

Almost surely, 2^3897650 is an apocalyptic number.

3897650 is a deficient number, since it is larger than the sum of its proper divisors (3417730).

3897650 is a wasteful number, since it uses less digits than its factorization.

3897650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 3897650 is about 1974.2466917789. The cubic root of 3897650 is about 157.3744695574.

The spelling of 3897650 in words is "three million, eight hundred ninety-seven thousand, six hundred fifty".