709001990 has 8 divisors (see below), whose sum is σ = 1276203600. Its totient is φ = 283600792.

The previous prime is 709001987. The next prime is 709002001. The reversal of 709001990 is 99100907.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 709001990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35450090 + ... + 35450109.

It is an arithmetic number, because the mean of its divisors is an integer number (159525450).

Almost surely, 2^709001990 is an apocalyptic number.

709001990 is a deficient number, since it is larger than the sum of its proper divisors (567201610).

709001990 is a wasteful number, since it uses less digits than its factorization.

709001990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70900206.

The product of its (nonzero) digits is 5103, while the sum is 35.

The square root of 709001990 is about 26627.0912793718. The cubic root of 709001990 is about 891.6939459245.

The spelling of 709001990 in words is "seven hundred nine million, one thousand, nine hundred ninety".