4721431 has 16 divisors (see below), whose sum is σ = 5610528. Its totient is φ = 3916800.

The previous prime is 4721419. The next prime is 4721441. The reversal of 4721431 is 1341274.

It is a cyclic number.

It is not a de Polignac number, because 4721431 - 2⁷ = 4721303 is a prime.

It is a super-4 number, since 4×4721431⁴ (a number of 28 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4721411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19471 + ... + 19711.

It is an arithmetic number, because the mean of its divisors is an integer number (350658).

Almost surely, 2^4721431 is an apocalyptic number.

4721431 is a deficient number, since it is larger than the sum of its proper divisors (889097).

4721431 is a wasteful number, since it uses less digits than its factorization.

4721431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402.

The product of its digits is 672, while the sum is 22.

The square root of 4721431 is about 2172.8854088516. The cubic root of 4721431 is about 167.7610809258.

The spelling of 4721431 in words is "four million, seven hundred twenty-one thousand, four hundred thirty-one".