7859490 has 16 divisors (see below), whose sum is σ = 18862848. Its totient is φ = 2095856.

The previous prime is 7859447. The next prime is 7859513. The reversal of 7859490 is 949587.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130962 + ... + 131021.

It is an arithmetic number, because the mean of its divisors is an integer number (1178928).

Almost surely, 2^7859490 is an apocalyptic number.

7859490 is an abundant number, since it is smaller than the sum of its proper divisors (11003358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7859490 is a wasteful number, since it uses less digits than its factorization.

7859490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261993.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 7859490 is about 2803.4781968120. The cubic root of 7859490 is about 198.8221604198.

Subtracting from 7859490 its reverse (949587), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 7859490 in words is "seven million, eight hundred fifty-nine thousand, four hundred ninety".