3947230 has 64 divisors (see below), whose sum is σ = 8957952. Its totient is φ = 1221120.

The previous prime is 3947227. The next prime is 3947233. The reversal of 3947230 is 327493.

3947230 = T₁₆₄ + T₁₆₅ + ... + T₃₀₃.

It is an interprime number because it is at equal distance from previous prime (3947227) and next prime (3947233).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3947233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36837 + ... + 36943.

It is an arithmetic number, because the mean of its divisors is an integer number (139968).

Almost surely, 2^3947230 is an apocalyptic number.

3947230 is an abundant number, since it is smaller than the sum of its proper divisors (5010722).

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

3947230 is a wasteful number, since it uses less digits than its factorization.

3947230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169.

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

The square root of 3947230 is about 1986.7637000912. The cubic root of 3947230 is about 158.0389531688.

The spelling of 3947230 in words is "three million, nine hundred forty-seven thousand, two hundred thirty".