890464705 has 8 divisors (see below), whose sum is σ = 1150754472. Its totient is φ = 657573888.

The previous prime is 890464699. The next prime is 890464733. The reversal of 890464705 is 507464098.

It can be written as a sum of positive squares in 4 ways, for example, as 6235009 + 884229696 = 2497^2 + 29736^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 890464705 - 2⁷ = 890464577 is a prime.

It is a Duffinian 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, 6849664 + ... + 6849793.

It is an arithmetic number, because the mean of its divisors is an integer number (143844309).

Almost surely, 2^890464705 is an apocalyptic number.

It is an amenable number.

890464705 is a deficient number, since it is larger than the sum of its proper divisors (260289767).

890464705 is a wasteful number, since it uses less digits than its factorization.

890464705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13699475.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 890464705 is about 29840.6552374441. The cubic root of 890464705 is about 962.0675581406.

The spelling of 890464705 in words is "eight hundred ninety million, four hundred sixty-four thousand, seven hundred five".