3972434 has 4 divisors (see below), whose sum is σ = 5958654. Its totient is φ = 1986216.

The previous prime is 3972427. The next prime is 3972439. The reversal of 3972434 is 4342793.

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., 3478225 + 494209 = 1865^2 + 703^2 .

It is a d-powerful number, because it can be written as 3⁵ + 9³ + 7⁷ + 2²¹ + 4 + 3⁷ + 4¹⁰ .

It is a self number, because there is not a number n which added to its sum of digits gives 3972434.

It is not an unprimeable number, because it can be changed into a prime (3972439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 993107 + ... + 993110.

Almost surely, 2^3972434 is an apocalyptic number.

3972434 is a deficient number, since it is larger than the sum of its proper divisors (1986220).

3972434 is a wasteful number, since it uses less digits than its factorization.

3972434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986219.

The product of its digits is 18144, while the sum is 32.

The square root of 3972434 is about 1993.0965857178. The cubic root of 3972434 is about 158.3746118291.

The spelling of 3972434 in words is "three million, nine hundred seventy-two thousand, four hundred thirty-four".