2029651 has 4 divisors (see below), whose sum is σ = 2185792. Its totient is φ = 1873512.

The previous prime is 2029649. The next prime is 2029661. The reversal of 2029651 is 1569202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2029651 - 2¹ = 2029649 is a prime.

It is a super-3 number, since 3×2029651³ = 25083339478276744353, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2029661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78051 + ... + 78076.

It is an arithmetic number, because the mean of its divisors is an integer number (546448).

2^2029651 is an apocalyptic number.

2029651 is a deficient number, since it is larger than the sum of its proper divisors (156141).

2029651 is a wasteful number, since it uses less digits than its factorization.

2029651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156140.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 2029651 is about 1424.6582046231. The cubic root of 2029651 is about 126.6116851253.

The spelling of 2029651 in words is "two million, twenty-nine thousand, six hundred fifty-one".