3967650 has 48 divisors (see below), whose sum is σ = 10936800. Its totient is φ = 1057680.

The previous prime is 3967627. The next prime is 3967651. The reversal of 3967650 is 567693.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3967651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120 + ... + 2819.

It is an arithmetic number, because the mean of its divisors is an integer number (227850).

Almost surely, 2^3967650 is an apocalyptic number.

3967650 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3967650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5468400).

3967650 is an abundant number, since it is smaller than the sum of its proper divisors (6969150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3967650 is a wasteful number, since it uses less digits than its factorization.

3967650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960 (or 2949 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 3967650 is about 1991.8960816267. The cubic root of 3967650 is about 158.3110094719.

The spelling of 3967650 in words is "three million, nine hundred sixty-seven thousand, six hundred fifty".