709427990 has 8 divisors (see below), whose sum is σ = 1276970400. Its totient is φ = 283771192.

The previous prime is 709427921. The next prime is 709428001. The reversal of 709427990 is 99724907.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35471390 + ... + 35471409.

It is an arithmetic number, because the mean of its divisors is an integer number (159621300).

Almost surely, 2^709427990 is an apocalyptic number.

709427990 is a deficient number, since it is larger than the sum of its proper divisors (567542410).

709427990 is a wasteful number, since it uses less digits than its factorization.

709427990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70942806.

The product of its (nonzero) digits is 285768, while the sum is 47.

The square root of 709427990 is about 26635.0894498216. The cubic root of 709427990 is about 891.8724999918.

The spelling of 709427990 in words is "seven hundred nine million, four hundred twenty-seven thousand, nine hundred ninety".