890739 has 12 divisors (see below), whose sum is σ = 1354600. Its totient is φ = 562464.

The previous prime is 890737. The next prime is 890761. The reversal of 890739 is 937098.

It is not a de Polignac number, because 890739 - 2¹ = 890737 is a prime.

It is a super-2 number, since 2×890739² = 1586831932242, which contains 22 as substring.

It is a Duffinian number.

890739 is a lucky number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (890737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2434 + ... + 2775.

2⁸⁹⁰⁷³⁹ is an apocalyptic number.

890739 is a deficient number, since it is larger than the sum of its proper divisors (463861).

890739 is a wasteful number, since it uses less digits than its factorization.

890739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5234 (or 5231 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 890739 is about 943.7897011517. The cubic root of 890739 is about 96.2166331747.

The spelling of 890739 in words is "eight hundred ninety thousand, seven hundred thirty-nine".