902078 has 4 divisors (see below), whose sum is σ = 1353120. Its totient is φ = 451038.

The previous prime is 902053. The next prime is 902087. The reversal of 902078 is 870209.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 870209 = 373 ⋅2333.

It is a congruent number.

It is an unprimeable number.

902078 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 225518 + ... + 225521.

It is an arithmetic number, because the mean of its divisors is an integer number (338280).

2⁹⁰²⁰⁷⁸ is an apocalyptic number.

902078 is a deficient number, since it is larger than the sum of its proper divisors (451042).

902078 is a wasteful number, since it uses less digits than its factorization.

902078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451041.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 902078 is about 949.7778687672. Note that the first 3 decimals coincide. The cubic root of 902078 is about 96.6231882687.

The spelling of 902078 in words is "nine hundred two thousand, seventy-eight".