3948651 has 24 divisors (see below), whose sum is σ = 6570720. Its totient is φ = 2238336.

The previous prime is 3948619. The next prime is 3948653. The reversal of 3948651 is 1568493.

It is not a de Polignac number, because 3948651 - 2⁵ = 3948619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3948653) 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, 14545 + ... + 14813.

It is an arithmetic number, because the mean of its divisors is an integer number (273780).

Almost surely, 2^3948651 is an apocalyptic number.

3948651 is a deficient number, since it is larger than the sum of its proper divisors (2622069).

3948651 is a wasteful number, since it uses less digits than its factorization.

3948651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515 (or 512 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 3948651 is about 1987.1212846729. The cubic root of 3948651 is about 158.0579155305.

It can be divided in two parts, 394 and 8651, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 3948651 in words is "three million, nine hundred forty-eight thousand, six hundred fifty-one".