890489077 has 4 divisors (see below), whose sum is σ = 890947456. Its totient is φ = 890030700.

The previous prime is 890489063. The next prime is 890489081. The reversal of 890489077 is 770984098.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-890489077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890489057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226263 + ... + 230164.

It is an arithmetic number, because the mean of its divisors is an integer number (222736864).

Almost surely, 2^890489077 is an apocalyptic number.

It is an amenable number.

890489077 is a deficient number, since it is larger than the sum of its proper divisors (458379).

890489077 is a wasteful number, since it uses less digits than its factorization.

890489077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458378.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 890489077 is about 29841.0636036988. The cubic root of 890489077 is about 962.0763353167.

The spelling of 890489077 in words is "eight hundred ninety million, four hundred eighty-nine thousand, seventy-seven".