10709991 has 6 divisors (see below), whose sum is σ = 15470000. Its totient is φ = 7139988.

The previous prime is 10709989. The next prime is 10709999. The reversal of 10709991 is 19990701.

It is not a de Polignac number, because 10709991 - 2¹ = 10709989 is a prime.

It is a super-2 number, since 2×10709991² = 229407814440162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10709999) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 594991 + ... + 595008.

Almost surely, 2^10709991 is an apocalyptic number.

10709991 is a deficient number, since it is larger than the sum of its proper divisors (4760009).

10709991 is a wasteful number, since it uses less digits than its factorization.

10709991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190005 (or 1190002 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 36.

The square root of 10709991 is about 3272.6122593427. The cubic root of 10709991 is about 220.4261094142.

The spelling of 10709991 in words is "ten million, seven hundred nine thousand, nine hundred ninety-one".