3947464 has 8 divisors (see below), whose sum is σ = 7401510. Its totient is φ = 1973728.

The previous prime is 3947453. The next prime is 3947473. The reversal of 3947464 is 4647493.

It can be written as a sum of positive squares in only one way, i.e., 3880900 + 66564 = 1970^2 + 258^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246709 + ... + 246724.

Almost surely, 2^3947464 is an apocalyptic number.

It is an amenable number.

3947464 is a deficient number, since it is larger than the sum of its proper divisors (3454046).

3947464 is a wasteful number, since it uses less digits than its factorization.

3947464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493439 (or 493435 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The square root of 3947464 is about 1986.8225889596. The cubic root of 3947464 is about 158.0420760663.

The spelling of 3947464 in words is "three million, nine hundred forty-seven thousand, four hundred sixty-four".