890332771693 has 4 divisors (see below), whose sum is σ = 890363923200. Its totient is φ = 890301620188.

The previous prime is 890332771687. The next prime is 890332771723. The reversal of 890332771693 is 396177233098.

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, and also an emirpimes, since its reverse is a distinct semiprime: 396177233098 = 2 ⋅198088616549.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-890332771693 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890332771613) 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, 15532843 + ... + 15590056.

It is an arithmetic number, because the mean of its divisors is an integer number (222590980800).

Almost surely, 2^890332771693 is an apocalyptic number.

It is an amenable number.

890332771693 is a deficient number, since it is larger than the sum of its proper divisors (31151507).

890332771693 is a wasteful number, since it uses less digits than its factorization.

890332771693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31151506.

The product of its (nonzero) digits is 10287648, while the sum is 58.

The spelling of 890332771693 in words is "eight hundred ninety billion, three hundred thirty-two million, seven hundred seventy-one thousand, six hundred ninety-three".