3629731 has 4 divisors (see below), whose sum is σ = 4148272. Its totient is φ = 3111192.

The previous prime is 3629729. The next prime is 3629749. The reversal of 3629731 is 1379263.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3629731 - 2¹ = 3629729 is a prime.

It is a super-2 number, since 2×3629731² = 26349894264722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3629693 and 3629702.

It is not an unprimeable number, because it can be changed into a prime (3629831) 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, 259260 + ... + 259273.

It is an arithmetic number, because the mean of its divisors is an integer number (1037068).

Almost surely, 2^3629731 is an apocalyptic number.

3629731 is a deficient number, since it is larger than the sum of its proper divisors (518541).

3629731 is an equidigital number, since it uses as much as digits as its factorization.

3629731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518540.

The product of its digits is 6804, while the sum is 31.

The square root of 3629731 is about 1905.1852928259. The cubic root of 3629731 is about 153.6826404208.

The spelling of 3629731 in words is "three million, six hundred twenty-nine thousand, seven hundred thirty-one".