3970620 has 144 divisors (see below), whose sum is σ = 13453440. Its totient is φ = 979776.

The previous prime is 3970591. The next prime is 3970633. The reversal of 3970620 is 260793.

3970620 is a `hidden beast` number, since 39 + 7 + 0 + 620 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92319 + ... + 92361.

Almost surely, 2^3970620 is an apocalyptic number.

3970620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3970620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6726720).

3970620 is an abundant number, since it is smaller than the sum of its proper divisors (9482820).

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

3970620 is a wasteful number, since it uses less digits than its factorization.

3970620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 3970620 is about 1992.6414629832. The cubic root of 3970620 is about 158.3505010625.

The spelling of 3970620 in words is "three million, nine hundred seventy thousand, six hundred twenty".