2861902 has 8 divisors (see below), whose sum is σ = 4310712. Its totient is φ = 1425000.

The previous prime is 2861897. The next prime is 2861909. The reversal of 2861902 is 2091682.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861909) 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, 2349 + ... + 3352.

It is an arithmetic number, because the mean of its divisors is an integer number (538839).

2^2861902 is an apocalyptic number.

2861902 is a deficient number, since it is larger than the sum of its proper divisors (1448810).

2861902 is a wasteful number, since it uses less digits than its factorization.

2861902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5954.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2861902 is about 1691.7156971548. The cubic root of 2861902 is about 141.9770841815.

The spelling of 2861902 in words is "two million, eight hundred sixty-one thousand, nine hundred two".