10921693 has 2 divisors, whose sum is σ = 10921694. Its totient is φ = 10921692.

The previous prime is 10921649. The next prime is 10921709. The reversal of 10921693 is 39612901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8543929 + 2377764 = 2923^2 + 1542^2 .

It is a cyclic number.

It is not a de Polignac number, because 10921693 - 2¹⁷ = 10790621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10981693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5460846 + 5460847.

It is an arithmetic number, because the mean of its divisors is an integer number (5460847).

Almost surely, 2^10921693 is an apocalyptic number.

It is an amenable number.

10921693 is a deficient number, since it is larger than the sum of its proper divisors (1).

10921693 is an equidigital number, since it uses as much as digits as its factorization.

10921693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 10921693 is about 3304.7984809970. The cubic root of 10921693 is about 221.8690147959.

The spelling of 10921693 in words is "ten million, nine hundred twenty-one thousand, six hundred ninety-three".