10651891 has 2 divisors, whose sum is σ = 10651892. Its totient is φ = 10651890.

The previous prime is 10651853. The next prime is 10651897. The reversal of 10651891 is 19815601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10651891 - 2¹¹ = 10649843 is a prime.

It is a super-2 number, since 2×10651891² = 226925563751762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10651897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5325945 + 5325946.

It is an arithmetic number, because the mean of its divisors is an integer number (5325946).

Almost surely, 2^10651891 is an apocalyptic number.

10651891 is a deficient number, since it is larger than the sum of its proper divisors (1).

10651891 is an equidigital number, since it uses as much as digits as its factorization.

10651891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 10651891 is about 3263.7234870620. The cubic root of 10651891 is about 220.0267942572.

The spelling of 10651891 in words is "ten million, six hundred fifty-one thousand, eight hundred ninety-one".