890802649 has 8 divisors (see below), whose sum is σ = 972002592. Its totient is φ = 809639040.

The previous prime is 890802637. The next prime is 890802733. The reversal of 890802649 is 946208098.

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 890802649 - 2¹¹ = 890800601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 890802599 and 890802608.

It is not an unprimeable number, because it can be changed into a prime (890802149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81577 + ... + 91849.

It is an arithmetic number, because the mean of its divisors is an integer number (121500324).

Almost surely, 2^890802649 is an apocalyptic number.

It is an amenable number.

890802649 is a deficient number, since it is larger than the sum of its proper divisors (81199943).

890802649 is a wasteful number, since it uses less digits than its factorization.

890802649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18167.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 890802649 is about 29846.3171764960. The cubic root of 890802649 is about 962.1892488473.

The spelling of 890802649 in words is "eight hundred ninety million, eight hundred two thousand, six hundred forty-nine".