3970655 has 24 divisors (see below), whose sum is σ = 5340672. Its totient is φ = 2830464.

The previous prime is 3970649. The next prime is 3970657. The reversal of 3970655 is 5560793.

It is not a de Polignac number, because 3970655 - 2⁶ = 3970591 is a prime.

It is a super-2 number, since 2×3970655² = 31532202258050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3970657) 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, 31202 + ... + 31328.

It is an arithmetic number, because the mean of its divisors is an integer number (222528).

Almost surely, 2^3970655 is an apocalyptic number.

3970655 is a deficient number, since it is larger than the sum of its proper divisors (1370017).

3970655 is a wasteful number, since it uses less digits than its factorization.

3970655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 35.

The square root of 3970655 is about 1992.6502452764. The cubic root of 3970655 is about 158.3509663341.

The spelling of 3970655 in words is "three million, nine hundred seventy thousand, six hundred fifty-five".