3974645 has 8 divisors (see below), whose sum is σ = 4782240. Its totient is φ = 3171280.

The previous prime is 3974623. The next prime is 3974657. The reversal of 3974645 is 5464793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3974645 - 2⁸ = 3974389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3974599 and 3974608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1646 + ... + 3264.

It is an arithmetic number, because the mean of its divisors is an integer number (597780).

Almost surely, 2^3974645 is an apocalyptic number.

It is an amenable number.

3974645 is a deficient number, since it is larger than the sum of its proper divisors (807595).

3974645 is a wasteful number, since it uses less digits than its factorization.

3974645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115.

The product of its digits is 90720, while the sum is 38.

The square root of 3974645 is about 1993.6511730992. The cubic root of 3974645 is about 158.4039893946.

The spelling of 3974645 in words is "three million, nine hundred seventy-four thousand, six hundred forty-five".