3702729 has 4 divisors (see below), whose sum is σ = 4936976. Its totient is φ = 2468484.

The previous prime is 3702697. The next prime is 3702757. The reversal of 3702729 is 9272073.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3702729 - 2⁵ = 3702697 is a prime.

It is a D-number.

It is a Duffinian number.

3702729 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3702696 and 3702705.

It is not an unprimeable number, because it can be changed into a prime (3702229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617119 + ... + 617124.

It is an arithmetic number, because the mean of its divisors is an integer number (1234244).

Almost surely, 2^3702729 is an apocalyptic number.

It is an amenable number.

3702729 is a deficient number, since it is larger than the sum of its proper divisors (1234247).

3702729 is a wasteful number, since it uses less digits than its factorization.

3702729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234246.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 3702729 is about 1924.2476451850. The cubic root of 3702729 is about 154.7060540748.

The spelling of 3702729 in words is "three million, seven hundred two thousand, seven hundred twenty-nine".