10491913 has 2 divisors, whose sum is σ = 10491914. Its totient is φ = 10491912.

The previous prime is 10491869. The next prime is 10491917. The reversal of 10491913 is 31919401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9437184 + 1054729 = 3072^2 + 1027^2 .

It is a cyclic number.

It is not a de Polignac number, because 10491913 - 2¹³ = 10483721 is a prime.

It is a super-2 number, since 2×10491913² = 220160476799138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10491917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5245956 + 5245957.

It is an arithmetic number, because the mean of its divisors is an integer number (5245957).

Almost surely, 2^10491913 is an apocalyptic number.

It is an amenable number.

10491913 is a deficient number, since it is larger than the sum of its proper divisors (1).

10491913 is an equidigital number, since it uses as much as digits as its factorization.

10491913 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 10491913 is about 3239.1222576494. The cubic root of 10491913 is about 218.9197248232.

The spelling of 10491913 in words is "ten million, four hundred ninety-one thousand, nine hundred thirteen".