7105087990 has 64 divisors (see below), whose sum is σ = 17171481600. Its totient is φ = 2044218240.

The previous prime is 7105087897. The next prime is 7105088009. The reversal of 7105087990 is 997805017.

It is a self number, because there is not a number n which added to its sum of digits gives 7105087990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344890 + ... + 364909.

It is an arithmetic number, because the mean of its divisors is an integer number (268304400).

Almost surely, 2^7105087990 is an apocalyptic number.

7105087990 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7105087990 is an abundant number, since it is smaller than the sum of its proper divisors (10066393610).

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

7105087990 is a wasteful number, since it uses less digits than its factorization.

7105087990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709837.

The product of its (nonzero) digits is 158760, while the sum is 46.

The square root of 7105087990 is about 84291.6839907710. The cubic root of 7105087990 is about 1922.4563459779.

The spelling of 7105087990 in words is "seven billion, one hundred five million, eighty-seven thousand, nine hundred ninety".