890736453 has 16 divisors (see below), whose sum is σ = 1328472000. Its totient is φ = 589836240.

The previous prime is 890736449. The next prime is 890736461. The reversal of 890736453 is 354637098.

It is not a de Polignac number, because 890736453 - 2² = 890736449 is a prime.

It is a super-2 number, since 2×890736453² = 1586822857406042418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 890736399 and 890736408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890736463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106683 + ... + 114728.

It is an arithmetic number, because the mean of its divisors is an integer number (83029500).

Almost surely, 2^890736453 is an apocalyptic number.

It is an amenable number.

890736453 is a deficient number, since it is larger than the sum of its proper divisors (437735547).

890736453 is a wasteful number, since it uses less digits than its factorization.

890736453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221569 (or 221563 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 890736453 is about 29845.2082083540. The cubic root of 890736453 is about 962.1654146654.

The spelling of 890736453 in words is "eight hundred ninety million, seven hundred thirty-six thousand, four hundred fifty-three".