3914245 has 4 divisors (see below), whose sum is σ = 4697100. Its totient is φ = 3131392.

The previous prime is 3914221. The next prime is 3914249. The reversal of 3914245 is 5424193.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5424193 = 157 ⋅34549.

It can be written as a sum of positive squares in 2 ways, for example, as 2232036 + 1682209 = 1494^2 + 1297^2 .

It is a cyclic number.

It is not a de Polignac number, because 3914245 - 2²¹ = 1817093 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3914249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391420 + ... + 391429.

It is an arithmetic number, because the mean of its divisors is an integer number (1174275).

Almost surely, 2^3914245 is an apocalyptic number.

It is an amenable number.

3914245 is a deficient number, since it is larger than the sum of its proper divisors (782855).

3914245 is an equidigital number, since it uses as much as digits as its factorization.

3914245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782854.

The product of its digits is 4320, while the sum is 28.

The square root of 3914245 is about 1978.4450965341. The cubic root of 3914245 is about 157.5975040832.

It can be divided in two parts, 39 and 14245, that multiplied together give a palindrome (555555).

The spelling of 3914245 in words is "three million, nine hundred fourteen thousand, two hundred forty-five".