10649999 has 2 divisors, whose sum is σ = 10650000. Its totient is φ = 10649998.

The previous prime is 10649993. The next prime is 10650011. The reversal of 10649999 is 99994601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10649999 - 2⁴ = 10649983 is a prime.

It is a super-2 number, since 2×10649999² = 226844957400002, which contains 22 as substring.

It is a Chen prime.

10649999 is a modest number, since divided by 9999 gives 1064 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10649993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5324999 + 5325000.

It is an arithmetic number, because the mean of its divisors is an integer number (5325000).

Almost surely, 2^10649999 is an apocalyptic number.

10649999 is a deficient number, since it is larger than the sum of its proper divisors (1).

10649999 is an equidigital number, since it uses as much as digits as its factorization.

10649999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 47.

The square root of 10649999 is about 3263.4336212033. The cubic root of 10649999 is about 220.0137663562.

It can be divided in two parts, 106 and 49999, that added together give a palindrome (50105).

The spelling of 10649999 in words is "ten million, six hundred forty-nine thousand, nine hundred ninety-nine".