3930724 has 24 divisors (see below), whose sum is σ = 7965440. Its totient is φ = 1662336.

The previous prime is 3930721. The next prime is 3930727. The reversal of 3930724 is 4270393.

It is an interprime number because it is at equal distance from previous prime (3930721) and next prime (3930727).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 3930692 and 3930701.

It is not an unprimeable number, because it can be changed into a prime (3930721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1324 + ... + 3100.

Almost surely, 2^3930724 is an apocalyptic number.

It is an amenable number.

3930724 is an abundant number, since it is smaller than the sum of its proper divisors (4034716).

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

3930724 is a wasteful number, since it uses less digits than its factorization.

3930724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867 (or 1865 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 3930724 is about 1982.6053565952. The cubic root of 3930724 is about 157.8183566562.

The spelling of 3930724 in words is "three million, nine hundred thirty thousand, seven hundred twenty-four".