3870434 has 4 divisors (see below), whose sum is σ = 5805654. Its totient is φ = 1935216.

The previous prime is 3870413. The next prime is 3870437. The reversal of 3870434 is 4340783.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2900209 + 970225 = 1703^2 + 985^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3870397 and 3870406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3870437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 967607 + ... + 967610.

Almost surely, 2^3870434 is an apocalyptic number.

3870434 is a deficient number, since it is larger than the sum of its proper divisors (1935220).

3870434 is a wasteful number, since it uses less digits than its factorization.

3870434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935219.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 3870434 is about 1967.3418614974. The cubic root of 3870434 is about 157.0073157098.

The spelling of 3870434 in words is "three million, eight hundred seventy thousand, four hundred thirty-four".