3693729 has 16 divisors (see below), whose sum is σ = 5406912. Its totient is φ = 2228928.

The previous prime is 3693721. The next prime is 3693737. The reversal of 3693729 is 9273963.

It is an interprime number because it is at equal distance from previous prime (3693721) and next prime (3693737).

It is not a de Polignac number, because 3693729 - 2³ = 3693721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3693721) 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, 1174 + ... + 2960.

It is an arithmetic number, because the mean of its divisors is an integer number (337932).

Almost surely, 2^3693729 is an apocalyptic number.

3693729 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3693729 is a deficient number, since it is larger than the sum of its proper divisors (1713183).

3693729 is a wasteful number, since it uses less digits than its factorization.

3693729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856.

The product of its digits is 61236, while the sum is 39.

The square root of 3693729 is about 1921.9076460642. The cubic root of 3693729 is about 154.5806074905.

The spelling of 3693729 in words is "three million, six hundred ninety-three thousand, seven hundred twenty-nine".