4239951 has 8 divisors (see below), whose sum is σ = 5670144. Its totient is φ = 2818200.

The previous prime is 4239931. The next prime is 4239971. The reversal of 4239951 is 1599324.

It is an interprime number because it is at equal distance from previous prime (4239931) and next prime (4239971).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4239951 - 2¹⁸ = 3977807 is a prime.

4239951 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4239931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825 + ... + 3026.

It is an arithmetic number, because the mean of its divisors is an integer number (708768).

Almost surely, 2^4239951 is an apocalyptic number.

4239951 is the 1101-st nonagonal number.

4239951 is a deficient number, since it is larger than the sum of its proper divisors (1430193).

4239951 is a wasteful number, since it uses less digits than its factorization.

4239951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221.

The product of its digits is 9720, while the sum is 33.

The square root of 4239951 is about 2059.1141299112. The cubic root of 4239951 is about 161.8528231969.

It can be divided in two parts, 42 and 39951, that added together give a palindrome (39993).

The spelling of 4239951 in words is "four million, two hundred thirty-nine thousand, nine hundred fifty-one".