10021699 has 2 divisors, whose sum is σ = 10021700. Its totient is φ = 10021698.

The previous prime is 10021663. The next prime is 10021723. The reversal of 10021699 is 99612001.

10021699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10021699 is a prime.

It is a nialpdrome in base 6.

It is not a weakly prime, because it can be changed into another prime (10021639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010849 + 5010850.

It is an arithmetic number, because the mean of its divisors is an integer number (5010850).

Almost surely, 2^10021699 is an apocalyptic number.

10021699 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021699 is an equidigital number, since it uses as much as digits as its factorization.

10021699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 10021699 is about 3165.7067141477. The cubic root of 10021699 is about 215.5991866880.

It can be divided in two parts, 1002 and 1699, that added together give a triangular number (2701 = T₇₃).

The spelling of 10021699 in words is "ten million, twenty-one thousand, six hundred ninety-nine".