902861 has 12 divisors (see below), whose sum is σ = 992124. Its totient is φ = 820800.

The previous prime is 902849. The next prime is 902873. The reversal of 902861 is 168209.

902861 is nontrivially palindromic in base 16.

It is an interprime number because it is at equal distance from previous prime (902849) and next prime (902873).

It can be written as a sum of positive squares in 2 ways, for example, as 36100 + 866761 = 190^2 + 931^2 .

It is a de Polignac number, because none of the positive numbers 2^k-902861 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 902861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (902821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14771 + ... + 14831.

It is an arithmetic number, because the mean of its divisors is an integer number (82677).

2⁹⁰²⁸⁶¹ is an apocalyptic number.

It is an amenable number.

902861 is a deficient number, since it is larger than the sum of its proper divisors (89263).

902861 is a wasteful number, since it uses less digits than its factorization.

902861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 902861 is about 950.1899810038. The cubic root of 902861 is about 96.6511363609.

The spelling of 902861 in words is "nine hundred two thousand, eight hundred sixty-one".