2999690 has 8 divisors (see below), whose sum is σ = 5399460. Its totient is φ = 1199872.

The previous prime is 2999677. The next prime is 2999693. The reversal of 2999690 is 969992.

2999690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2982529 + 17161 = 1727^2 + 131^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2999690² = 17996280192200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2999693) 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 in 3 ways as a sum of consecutive naturals, for example, 149975 + ... + 149994.

2^2999690 is an apocalyptic number.

2999690 is a deficient number, since it is larger than the sum of its proper divisors (2399770).

2999690 is a wasteful number, since it uses less digits than its factorization.

2999690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299976.

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 2999690 is about 1731.9613159652. The cubic root of 2999690 is about 144.2199891111.

The spelling of 2999690 in words is "two million, nine hundred ninety-nine thousand, six hundred ninety".