3650731 has 4 divisors (see below), whose sum is σ = 4172272. Its totient is φ = 3129192.

The previous prime is 3650729. The next prime is 3650741. The reversal of 3650731 is 1370563.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1370563 = 107 ⋅12809.

It is a cyclic number.

It is not a de Polignac number, because 3650731 - 2¹ = 3650729 is a prime.

It is a super-2 number, since 2×3650731² = 26655673668722, which contains 22 as substring.

It is a Duffinian number.

3650731 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3650696 and 3650705.

It is not an unprimeable number, because it can be changed into a prime (3650701) 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, 260760 + ... + 260773.

It is an arithmetic number, because the mean of its divisors is an integer number (1043068).

Almost surely, 2^3650731 is an apocalyptic number.

3650731 is a deficient number, since it is larger than the sum of its proper divisors (521541).

3650731 is an equidigital number, since it uses as much as digits as its factorization.

3650731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521540.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 3650731 is about 1910.6886193203. The cubic root of 3650731 is about 153.9784503495.

The spelling of 3650731 in words is "three million, six hundred fifty thousand, seven hundred thirty-one".