890656067 has 4 divisors (see below), whose sum is σ = 1017892656. Its totient is φ = 763419480.

The previous prime is 890656057. The next prime is 890656087. The reversal of 890656067 is 760656098.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 890656067 - 2⁴ = 890656051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (890656007) 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, 63618284 + ... + 63618297.

It is an arithmetic number, because the mean of its divisors is an integer number (254473164).

Almost surely, 2^890656067 is an apocalyptic number.

890656067 is a deficient number, since it is larger than the sum of its proper divisors (127236589).

890656067 is a wasteful number, since it uses less digits than its factorization.

890656067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127236588.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 890656067 is about 29843.8614626191. The cubic root of 890656067 is about 962.1364697193.

The spelling of 890656067 in words is "eight hundred ninety million, six hundred fifty-six thousand, sixty-seven".