7985902 has 4 divisors (see below), whose sum is σ = 11978856. Its totient is φ = 3992950.

The previous prime is 7985897. The next prime is 7985927. The reversal of 7985902 is 2095897.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2095897 = 1013 ⋅2069.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996474 + ... + 1996477.

It is an arithmetic number, because the mean of its divisors is an integer number (2994714).

Almost surely, 2^7985902 is an apocalyptic number.

7985902 is a deficient number, since it is larger than the sum of its proper divisors (3992954).

7985902 is a wasteful number, since it uses less digits than its factorization.

7985902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3992953.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 7985902 is about 2825.9338279585. The cubic root of 7985902 is about 199.8824475874.

The spelling of 7985902 in words is "seven million, nine hundred eighty-five thousand, nine hundred two".