3729081 has 8 divisors (see below), whose sum is σ = 5143680. Its totient is φ = 2400272.

The previous prime is 3729071. The next prime is 3729097. The reversal of 3729081 is 1809273.

It is a happy number.

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

It is not a de Polignac number, because 3729081 - 2⁵ = 3729049 is a prime.

It is a super-2 number, since 2×3729081² = 27812090209122, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 21345 + ... + 21518.

It is an arithmetic number, because the mean of its divisors is an integer number (642960).

Almost surely, 2^3729081 is an apocalyptic number.

It is an amenable number.

3729081 is a deficient number, since it is larger than the sum of its proper divisors (1414599).

3729081 is a wasteful number, since it uses less digits than its factorization.

3729081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42895.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 3729081 is about 1931.0828568448. The cubic root of 3729081 is about 155.0721966823.

It can be divided in two parts, 372 and 9081, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 3729081 in words is "three million, seven hundred twenty-nine thousand, eighty-one".