84025990 has 16 divisors (see below), whose sum is σ = 151357248. Its totient is φ = 33585856.

The previous prime is 84025979. The next prime is 84026003. The reversal of 84025990 is 9952048.

It is a congruent 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, 18594 + ... + 22666.

It is an arithmetic number, because the mean of its divisors is an integer number (9459828).

Almost surely, 2^84025990 is an apocalyptic number.

84025990 is a deficient number, since it is larger than the sum of its proper divisors (67331258).

84025990 is a wasteful number, since it uses less digits than its factorization.

84025990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6143.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 84025990 is about 9166.5691509965. The cubic root of 84025990 is about 437.9970774671.

The spelling of 84025990 in words is "eighty-four million, twenty-five thousand, nine hundred ninety".