3650834921 has 2 divisors, whose sum is σ = 3650834922. Its totient is φ = 3650834920.

The previous prime is 3650834879. The next prime is 3650834923. The reversal of 3650834921 is 1294380563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3520760896 + 130074025 = 59336^2 + 11405^2 .

It is a cyclic number.

It is not a de Polignac number, because 3650834921 - 2¹⁰ = 3650833897 is a prime.

Together with 3650834923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3650834923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1825417460 + 1825417461.

It is an arithmetic number, because the mean of its divisors is an integer number (1825417461).

Almost surely, 2^3650834921 is an apocalyptic number.

It is an amenable number.

3650834921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3650834921 is an equidigital number, since it uses as much as digits as its factorization.

3650834921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 3650834921 is about 60422.1393282297. The cubic root of 3650834921 is about 1539.7991137582.

The spelling of 3650834921 in words is "three billion, six hundred fifty million, eight hundred thirty-four thousand, nine hundred twenty-one".