3729831 has 12 divisors (see below), whose sum is σ = 5785272. Its totient is φ = 2131248.

The previous prime is 3729809. The next prime is 3729853. The reversal of 3729831 is 1389273.

It is an interprime number because it is at equal distance from previous prime (3729809) and next prime (3729853).

It is not a de Polignac number, because 3729831 - 2⁵ = 3729799 is a prime.

It is a super-2 number, since 2×3729831² = 27823278577122, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3¹³ + 7⁵ + 2¹⁹ + 9² + 8 + 3¹³ + 1 .

It is a junction number, because it is equal to n+sod(n) for n = 3729792 and 3729801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3729031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12540 + ... + 12833.

It is an arithmetic number, because the mean of its divisors is an integer number (482106).

Almost surely, 2^3729831 is an apocalyptic number.

3729831 is a deficient number, since it is larger than the sum of its proper divisors (2055441).

3729831 is a wasteful number, since it uses less digits than its factorization.

3729831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25390 (or 25383 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 3729831 is about 1931.2770386457. The cubic root of 3729831 is about 155.0825921257.

It can be divided in two parts, 3729 and 831, that added together give a triangular number (4560 = T₉₅).

The spelling of 3729831 in words is "three million, seven hundred twenty-nine thousand, eight hundred thirty-one".